Monday, December 27, 2010
One Million Galaxies
Are the nearest galaxies distributed randomly? A plot of over one million of the brightest "extended sources" detected by the Two Micron All Sky Survey (2MASS) shows that they are not. The vast majority of these infrared extended sources are galaxies. Visible above is an incredible tapestry of structure that provides limits on how the universe formed and evolved. Many galaxies are
Sunday, December 26, 2010
Sideways Orion Over Snowy Ireland
Orion always comes up sideways ... and was caught in the act earlier this month by over a snowy landscape in Donegal, Ireland. To compose this serene picture, the photographer found a picturesque setting to the east, waited until after sunset, and then momentarily lit the foreground with a flashlight. The three bright stars in Orion's belt stand in a nearly vertical line above the snow
Saturday, December 25, 2010
Decorating the Sky
Bright stars, clouds of dust and glowing nebulae decorate this cosmic scene, a skyscape just north of Orion's belt. Close to the plane of our Milky Way Galaxy, the wide field view spans about 5.5 degrees. Striking bluish M78, a reflection nebula, is at the left. M78's tint is due to dust preferentially reflecting the blue light of hot, young stars. In colourful contrast, the red sash of
Apollo 8: Christmas at the Moon
Christmas Eve, 1968. As one of the most turbulent, tragic years in American history drew to a close, millions around the world were watching and listening as the Apollo 8 astronauts -- Frank Borman, Jim Lovell and Bill Anders -- became the first humans to orbit another world.
As their command module floated above the lunar surface, the astronauts beamed back images of the moon and Earth and took
As their command module floated above the lunar surface, the astronauts beamed back images of the moon and Earth and took
Friday, December 24, 2010
Star Trails in the North
Pointing skyward, the wall of this ruined Viking church still stands after a thousand winters, near the town of Vallentuna, Sweden. The time exposure records the scene on December 14th as stars leave graceful arcing trails during a long night, reflecting planet Earth's daily rotation on its axis. The Earth's axis points toward Polaris, the North Star, near the centre of the concentric trails.
Thursday, December 23, 2010
NASA Hosts Planet-Finding Tweetup in California's Silicon Valle
NASA will give 100 of its Twitter followers an insider look at its planet-hunting Kepler spacecraft and the agency's Ames Research Center on Feb. 11 in Moffett Field in California.
For the first time, NASA's Twitter followers are being invited to Ames to learn about planetary discoveries from Kepler and the science flights of NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA)
For the first time, NASA's Twitter followers are being invited to Ames to learn about planetary discoveries from Kepler and the science flights of NASA's Stratospheric Observatory for Infrared Astronomy (SOFIA)
GOES Satellites Capture Holiday Weather Travel Conditions
Data from the GOES-13 and GOES-11 satellites were used to create a full image of the continental U.S. on Dec. 23 at 1145 UTC (6:45 a.m. EST) as travelers make their way across the country to their holiday destinations. The area clouds from the U.S. southwest stretching north are associated with a low pressure area over Colorado. The clouds over eastern New England are associated with a low
The Solstice Moon's Eclipse
A big, bright, beautiful Full Moon slid into planet Earth's shadow early Tuesday morning. Remarkably, the total lunar eclipse coincided with the date of the December Solstice. During the eclipse, the best viewing in North America found the coppery lunar disc high in a cold winter sky, the Moon reddened by light filtering into the Earth's dark central shadow or umbra. The light comes from all
Spinoff 2010
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Wednesday, December 22, 2010
Hidden Galaxy IC 342
Similar in size to other large, bright spiral galaxies, IC 342 is a mere 7 million light-years distant in the long-necked, northern constellation Camelopardalis. A sprawling island universe, IC 342 would otherwise be a prominent galaxy in our night sky, but it is almost hidden from view behind the veil of stars, gas and dust clouds in the plane of our Milky Way galaxy. Even though IC 342's
Tuesday, December 21, 2010
Tyrrhenian Sea and Solstice Sky
Today the solstice occurs at 23:38 Universal Time, the Sun reaching its southernmost declination in planet Earth's sky. Of course, the December solstice marks the beginning of winter in the northern hemisphere and summer in the south. When viewed from northern latitudes, and as shown in the above horizontally compressed image, the Sun will make its lowest arc through the sky along the
Monday, December 20, 2010
A Lunar Eclipse on Solstice Day
Sometime after sunset tonight, the Moon will go dark. This total lunar eclipse, where the entire Moon is engulfed in the shadow of the Earth, will be visible from all of North America, while the partial phase of this eclipse will be visible throughout much of the rest of the world. Observers on North America's east coast will have to wait until after midnight for totality to begin,
Sunday, December 19, 2010
M82: Galaxy with a Supergalactic Wind
What's lighting up the Cigar Galaxy? M82, as this irregular galaxy is also known, was stirred up by a recent pass near large spiral galaxy M81. This doesn't fully explain the source of the red-glowing outwardly expanding gas, however. Recent evidence indicates that this gas is being driven out by the combined emerging particle winds of many stars, together creating a galactic
Saturday, December 18, 2010
North America and the Pelican
Here lie familiar shapes in unfamiliar locations. On the left is an emission nebula cataloged as NGC 7000, famous partly because it resembles our fair planet's continent of North America. The emission region to the right of the North America Nebula is IC 5070, also known for its suggestive outlines as the Pelican Nebula. Separated by a dark cloud of obscuring dust, the two bright
Friday, December 17, 2010
Get Ready for the Solstice Lunar Eclipse!
The first total lunar eclipse in two years will grace the sky the night of Monday, Dec. 20, and we want you to be there. Sure, it's a school night, but with winter solstice and a new year upon us, what better time to gather your family and friends to see the moon in a new light?
At NASA, we're pretty excited for this year's lunar eclipse, so we're offering a number of features and
At NASA, we're pretty excited for this year's lunar eclipse, so we're offering a number of features and
A Meteor Moment
Intensely bright, this fireball meteor flashed through Tuesday's cold, clear, early morning skies over the Karkas Mountains in central Iran, near the peak of the annual Geminid Meteor Shower. To capture the meteor moment and wintery night skyscape, the photographer's camera was fixed to a tripod, its shutter open for about 1.5 minutes. During that time, the multitude of stars slowly traced
Thursday, December 16, 2010
NASA Moves Forward in Commercial Rocket Engine Testing
How long is a minute? It is longer than you think when it is filled with fire, steam and noise – lots of noise.
On Dec. 17, at NASA's John C. Stennis Space Center, a team of operators from Stennis, Orbital Sciences Corporation and Aerojet filled 55 seconds with all three during the second verification test fire of an Aerojet AJ26 rocket engine. Once verified, the engine will be placed on
Geminids over Kitt Peak
Two large telescope domes stand in the foreground of this night sky view from Kitt Peak National Observatory, near Tucson, Arizona, USA. The dramatic scene was recorded early Tuesday morning, near the peak of December's Geminid Meteor Shower. With dome slit open, the building closest to the camera houses the 2.3 Meter (90 inch) Bok Telescope operated by Steward Observatory, University of
Wednesday, December 15, 2010
NASA's Odyssey Spacecraft Sets Exploration Record on Mars
NASA's Mars Odyssey, which launched in 2001, will break the record Wednesday for longest-serving spacecraft at the Red Planet. The probe begins its 3,340th day in Martian orbit at 5:55 p.m. PST (8:55 p.m. EST) on Wednesday to break the record set by NASA's Mars Global Surveyor, which orbited Mars from 1997 to 2006.
Odyssey's longevity enables continued science, including the monitoring
A Huge Solar Filament Erupts
Click the arrow and watch an unusually long filament explode out from the Sun. The filament had been seen hovering over the Sun's surface for over a week before it erupted earlier this month. The image sequence was taken by the Earth-orbiting Solar Dynamics Observatory (SDO) in one color of ultraviolet light specifically emitted by helium, and another color of X-ray light
Tuesday, December 14, 2010
Launch of a Delta IV Heav
It is the tallest rocket in active use. The Delta IV Heavy is the largest of the Delta series, packing the punch of three rocket boosters instead of the usual one. The resulting rocket, the most powerful in use by the US Air Force, is capable of lifting over 23,000 kilograms into low Earth orbit, comparable to NASA's Space Shuttle. Pictured above is the second launch of the Delta IV
Monday, December 13, 2010
NASA Science Smackdown: Mono Lake 'Discovery' Challenged
"We have cracked open the door to what is possible for life elsewhere in the universe," Felisa Wolfe-Simon of the NASA Astrobiology Institute and U.S. Geological Survey, who led the NASA Mono Lake study, at last week's news conference (on right in image below).
When NASA announced the discovery of an arsenic-eating microbe in a California lake last week, the agency hailed it as a
When NASA announced the discovery of an arsenic-eating microbe in a California lake last week, the agency hailed it as a
Rollout
The Soyuz TMA-20 spacecraft is rolled out by train on its way to the launch pad at the Baikonur Cosmodrome, Monday, Dec. 13, 2010, in Kazakhstan. The launch of the Soyuz spacecraft with Expedition 26 Soyuz Commander Dmitry Kondratyev, NASA Flight Engineer Catherine Coleman and Italian astronaut Paolo Nespoli is scheduled for Wednesday, Dec. 16.
Dying Moon Spawned Saturn’s Rings
Saturn’s majestic rings are the remnants of a long-vanished moon that was stripped of its icy outer layer before its rocky heart plunged into the planet, a new theory proposes. The icy fragments would have encircled the solar system’s second largest planet as rings and eventually spalled off small moons of their own that are still there today, says Robin Canup, a planetary scientist at
Contemplating the Sky
Have you contemplated your sky recently? Tonight will be a good one for midnight meditators at many northerly locations as meteors from the Geminids meteor shower will frequently streak through. The Geminds meteor shower has slowly been building to a crescendo and should peak tonight. Pictured above ten days ago, a group of celestial sightseers in the Maranjab Desert in Iran, were
Sunday, December 12, 2010
Leonids Above Torre de la Guaita
In 1999, Leonids Meteor Shower came to an impressive crescendo. Observers in Europe saw a sharp peak in the number of meteors visible around 0210 UTC during the early morning hours of November 18. Meteor counts then exceeded 1000 per hour - the minimum needed to define a true meteor storm. At other times and from other locations around the world, observers typically reported respectable
Saturday, December 11, 2010
Meteor in the Desert Sky
Created as planet Earth sweeps through dusty debris from mysterious, asteroid-like, 3200 Phaethon, the annual Geminid Meteor Shower should be the best meteor shower of the year. The Geminids are predicted to peak on the night of December 13/14, but you can start watching for Geminid meteors this weekend. The best viewing is after midnight in a dark, moonless sky, with the shower's radiant
Friday, December 10, 2010
A Twilight Occultation
A thin, one day old crescent Moon hugged the western horizon after sunset on Monday, December 6. The Moon also occulted or passed in front of Mars. But only some well-placed skygazers along a band through North America were able to catch this lunar occultation's final act in fading twilight. For example, this telephoto image nicely captures the Mars as a pinprick of light, shortly after it
Thursday, December 9, 2010
M81 and Arp's Loop
One of the brightest galaxies in planet Earth's sky and similar in size to the Milky Way, big, beautiful spiral M81 lies 11.8 million light-years away in the northern constellation Ursa Major. This deep image of the region reveals details in the bright yellow core, but at the same time follows fainter features along the galaxy's gorgeous blue spiral arms and sweeping dust lanes. It also
Wednesday, December 8, 2010
Intrepid Crater on Mars
The robotic rover Opportunity has chanced across another small crater on Mars. Pictured above is Intrepid Crater, a 20-meter across impact basin slightly larger than Nereus Crater that Opportunity chanced across last year. The above image is in approximately true color but horizontally compressed to accommodate a wide angle panorama. Intrepid Crater was named after the lunar module
Tuesday, December 7, 2010
Too Close to a Black Hole
What would you see if you went right up to a black hole? Above is a computer generated image highlighting how strange things would look. The black hole has such strong gravity that light is noticeably bent towards it - causing some very unusual visual distortions. Every star in the normal frame has at least two bright images - one on each side of the black hole. Near the black hole, you can see
Monday, December 6, 2010
Mono Lake: Home to the Strange Microbe GFAJ-1
How strange could alien life be? An indication that the fundamental elements that compose most terrestrial life forms might differ out in the universe was found in unusual Mono Lake in California,USA. Bacteria in Mono's lakebed gives indications that it not only can tolerate a large abundance of normally toxic arsenic, but possibly use arsenic as a replacement for phosphorous, an element needed
Sunday, December 5, 2010
Moonrise Through Mauna Kea's Shadow
How can the Moon rise through a mountain? It cannot -- what was photographed here is a moonrise through the shadow of a large volcano. 84SF9NUC6ZDK The volcano is Mauna Kea, Hawai'i, USA, a frequent spot for spectacular photographs since it is arguably the premier observing location on planet Earth. The Sun has just set in the opposite direction, behind the camera. Additionally, the Moon
Did Junk Science Motivate Nasa’s ‘New Life’ Announcement?
Oh, Nasa. If only you could invent a time machine and go back to when you actually had a budget. The agency’s claim last week that it had found a new type of life in a lake in California is now under fire from all sides. Encirclement! One Slate article quotes several skeptical scientists who question the veracity of Nasa’s claims. One even said perhaps the most damming thing one scientist
Speck Between Rings
Saturn's moon Atlas can be seen just above the center of this Cassini spacecraft image as it orbits in the Roche Division between Saturn's A ring and thin F ring.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on April 12, 2010. The view was obtained at a distance of approximately 1.3 million miles (2.1 million kilometers) from Atlas.
Saturday, December 4, 2010
Sunset at the Spiral Jetty
In dwindling twilight at an August day's end, these broad dark bands appeared in the sky for a moment, seen from Robert Smithson's Spiral Jetty on the eastern shore of Utah's Great Salt Lake. Outlined by rays of sunlight known as crepuscular rays, they are actually shadows cast by clouds near the distant western horizon, the setting Sun having disappeared from direct view behind them. The
Friday, December 3, 2010
M33: Triangulum Galaxy
The small, northern constellation Triangulum harbors this magnificent face-on spiral galaxy, M33. Its popular names include the Pinwheel Galaxy or just the Triangulum Galaxy. M33 is over 50,000 light-years in diameter, third largest in the Local Group of galaxies after the Andromeda Galaxy (M31), and our own Milky Way. About 3 million light-years from the Milky Way, M33 is itself thought to
NASA Apologizes for Not Finding the Aliens
That’s how Mary Voytek, director, Astrobiology Program, NASA Headquarters, actually responded to a USA Today reporter at a press conference today, in response to a question about how doggone annoyed newspaper readers and internet users were that NASA didn’t discover a giant space alien, but only a measly microbe that can live on arsenic alone, a finding that blows apart our definition of Life
Thursday, December 2, 2010
Hartley 2 Star Cluster Tour
Early in November, small but active Comet Hartley 2 (103/P Hartley) became the fifth comet imaged close-up by a spacecraft from planet Earth. Continuing its own tour of the solar system with a 6 year orbital period, Hartley 2 is now appearing in the nautical constellation Puppis. Still a target for binoculars or small telescopes from dark sky locations, the comet is captured in this
NASA-Funded Research Discovers Life Built With Toxic Chemical
NASA-funded astrobiology research has changed the fundamental knowledge about what comprises all known life on Earth.
Researchers conducting tests in the harsh environment of Mono Lake in California have discovered the first known microorganism on Earth able to thrive and reproduce using the toxic chemical arsenic. The microorganism substitutes arsenic for phosphorus in its cell components.
"The
Researchers conducting tests in the harsh environment of Mono Lake in California have discovered the first known microorganism on Earth able to thrive and reproduce using the toxic chemical arsenic. The microorganism substitutes arsenic for phosphorus in its cell components.
"The
Wednesday, December 1, 2010
Martian Moon Phobos from Mars Express
Why is Phobos so dark? Phobos, the largest and innermost of two Martian moons, is the darkest moon in the entire Solar System. Its unusual orbit and color indicate that it may be a captured asteroid composed of a mixture of ice and dark rock. The above picture of Phobos near the limb of Mars was captured last month by the robot spacecraft Mars Express currently orbiting Mars.
Tuesday, November 30, 2010
Snowballing speculation over a NASA press conference
I don’t generally like to talk about NASA press conferences before they happen because I don’t want to promote baseless rumor-mongering. In this case, though, I feel I have to write something to prevent speculation! Here’s the scoop: NASA released the news that a press conference will be held on Thursday at 14:00 ET, saying that the conference will "discuss an astrobiology finding that will
A Supercell Thunderstorm Cloud Over Montana
Is that a spaceship or a cloud? Although it may seem like an alien mothership, it's actually a impressive thunderstorm cloud called a supercell. Such colossal storm systems center on mesocyclones -- rotating updrafts that can span several kilometers and deliver torrential rain and high winds including tornadoes. Jagged sculptured clouds adorn the supercell's edge, while wind swept dust
Monday, November 29, 2010
Dark Belt Reappearing on Jupiter
Why are planet-circling clouds disappearing and reappearing on Jupiter? Although the ultimate cause remains unknown, planetary meteorologists are beginning to better understand what is happening. Earlier this year, unexpectedly, Jupiter's dark Southern Equatorial Belt (SEB) disappeared. The changes were first noted by amateurs dedicated to watching Jupiter full time. The South
Sunday, November 28, 2010
Anticrepuscular Rays Over Colorado
What's happening over the horizon? Although the scene may appear somehow supernatural, nothing more unusual is occurring than a setting Sun and some well placed clouds. Pictured above are anticrepuscular rays. To understand them, start by picturing common crepuscular rays that are seen any time that sunlight pours though scattered clouds. Now although sunlight indeed travels
Saturday, November 27, 2010
Star Streams of NGC 4216
Some 40 million light-years distant, edge-on spiral galaxy NGC 4216 is nearly 100,000 light-years across, about the size of our own Milky Way. Found in the dense Virgo Galaxy Cluster, NGC 4216 is centered in this deep telescopic portrait flanked by fellow Virgo cluster members NGC 4206 (right) and NGC 4222. Like other large spirals, including the Milky Way, NGC 4216 has grown by
Friday, November 26, 2010
Flame Nebula Close-Up
Of course, the Flame Nebula is not on fire. Also known as NGC 2024, the nebula's suggestive reddish color is due to the glow of hydrogen atoms at the edge of the giant Orion molecular cloud complex some 1,500 light-years away. The hydrogen atoms have been ionized, or stripped of their electrons, and glow as the atoms and electrons recombine. But what ionizes the hydrogen atoms? In this
Thursday, November 25, 2010
Stardust in Aries
This composition in stardust covers almost 2 degrees on the sky, close to the border of the zodiacal constellation Aries and the plane of our Milky Way Galaxy. At the lower right of the gorgeous skyscape is a dusty blue reflection nebula surrounding a bright star cataloged as van den Bergh 13 (vdB 13), about 1,000 light-years away. At that estimated distance, the cosmic canvas is over 30
Wednesday, November 24, 2010
Flowing Auroras Over Norway
Have you ever seen an aurora? Auroras are occurring again with increasing frequency. With the Sun being unusually dormant over the past three years, the amount of Sun-induced auroras has also been unusually low. More recently, however, our Sun has become increasingly active and exhibiting a greater abundance of sunspots, flares, and coronal mass ejections. Solar activity like this
Tuesday, November 23, 2010
Gas and Snow Jets from Comet Hartley 2
Unusual jets have been discovered emanating from Comet Hartley 2. The EPOXI spacecraft imaged the jets in unprecedented detail during its flyby of the comet earlier this month. Pictured above, sun-illuminated jets shoot away from the two-kilometer long decaying iceberg that orbits the Sun between Earth and Jupiter. Comet Hartley 2 became active recently as it neared the Sun and
Monday, November 22, 2010
A Dark Dune Field in Proctor Crater on Mars
Was this image taken with a telescope or a microscope? Perhaps this clue will help: if the dark forms were bacteria, they would each span over football field across. What is actually being seen are large sand dunes on the floor of Proctor Crater on Mars. The above picture was taken by HiRISE camera on board the Mars Reconnaissance Orbiter (MRO), a robot spacecraft currently in orbit
Sunday, November 21, 2010
A Massive Star in NGC 6357
For reasons unknown, NGC 6357 is forming some of the most massive stars ever discovered. One such massive star, near the center of NGC 6357, is framed above carving out its own interstellar castle with its energetic light from surrounding gas and dust. In the greater nebula, the intricate patterns are caused by complex interactions between interstellar winds, radiation pressures, magnetic
Saturday, November 20, 2010
Free NASA Apps for iPad, iPhone and iPod Touch Available
Free NASA Apps For iPhone, iPad and iPod Touch Available
NASA App HD for iPad
NASA App for iPhone and iPod Touch
The NASA App for iPhone, iPod touch and iPad, combines all of your favorite NASA images, videos, missions and information into one, easy-to-use, application. It's available free of charge on the App Store from Apple directly on iPhone, iPod touch and iPad or within iTunes.
NASA App HD for iPad
NASA App for iPhone and iPod Touch
The NASA App for iPhone, iPod touch and iPad, combines all of your favorite NASA images, videos, missions and information into one, easy-to-use, application. It's available free of charge on the App Store from Apple directly on iPhone, iPod touch and iPad or within iTunes.
NASA FY 2011 Budget Documents, Strategic Plans and Performance Reports
FY 2011 Budget
FY 2011 Budget Overview (387 Kb PDF)
Administrator Bolden's Statement (68 Kb PDF)
Deputy Administrator's Remarks at the OSTP Budget Announcement (68 Kb PDF)
Office of Management and Budget: FY 2011 NASA Fact Sheet
NASA Budget Details From OMB
Joint Statement From NASA Administrator Bolden and John P. Holdren, Director, Office of Science and Technology Policy (112 Kb PDF)
Joint
FY 2011 Budget Overview (387 Kb PDF)
Administrator Bolden's Statement (68 Kb PDF)
Deputy Administrator's Remarks at the OSTP Budget Announcement (68 Kb PDF)
Office of Management and Budget: FY 2011 NASA Fact Sheet
NASA Budget Details From OMB
Joint Statement From NASA Administrator Bolden and John P. Holdren, Director, Office of Science and Technology Policy (112 Kb PDF)
Joint
Stephan's Quintet
The first identified compact galaxy group, Stephan's Quintet is featured in this eye-catching image constructed with data drawn from the extensive Hubble Legacy Archive. About 300 million light-years away, only four galaxies of the group are actually locked in a cosmic dance of repeated close encounters. The odd man out is easy to spot, though. The four interacting galaxies (NGC 7319, 7318A,
Friday, November 19, 2010
Nebulae in the Northern Cross
Explore a beautiful and complex region of nebulae strewn along the plane of our Milky Way Galaxy in this widefield skyscape. The image emphasizes cosmic gas clouds in a 25 by 25 degree view centered on the Northern Cross, the famous asterism in the constellation Cygnus. Bright, hot, supergiant star Deneb at the top of the cross, Sadr near the center, and beautiful Albireo run diagonally
Thursday, November 18, 2010
Sisters of the Dusty Sky
Hurtling through a cosmic dust cloud some 400 light-years away, the lovely Pleiades or Seven Sisters star cluster is well-known for its striking blue reflection nebulae. In the dusty sky toward the constellation Taurus and the Orion Arm of our Milky Way Galaxy, this remarkable image shows the famous star cluster at the upper left. But lesser known dusty nebulae lie along the region's fertile
Wednesday, November 17, 2010
Frosted Leaf Orion
Sometimes, you can put some night sky in your art. Captured above Japan earlier this month, a picturesque night sky was photographed behind a picturesque frosted leaf. The reflecting ice crystals on the leaf coolly mimic the shining stars far in the background. The particular background sky on this 48-second wide angle exposure, however, might appear quite interesting and familiar.
Tuesday, November 16, 2010
Atoms-for-Peace Galaxy Collision
Is this what will become of our Milky Way Galaxy? Perhaps if we collide with the Andromeda Galaxy in a few billion years, it might. Pictured above is NGC 7252, a jumble of stars created by a huge collision between two large galaxies. The collision will take hundreds of millions of years and so is effectively caught frozen in time in the above image. The resulting pandemonium has been
Monday, November 15, 2010
Home from Above
There's no place like home. Peering out of the windows of the International Space Station (ISS), astronaut Tracy Caldwell Dyson takes in the planet on which we were all born, and to which she would soon return. About 350 kilometers up, the ISS is high enough so that the Earth's horizon appears clearly curved. Astronaut Dyson's windows show some of Earth's complex clouds, in white, and
Sunday, November 14, 2010
Multiverses: Do Other Universes Exist?
Do nearly exact copies of you exist in other universes? If one or more of the multiverse hypotheses is correct, then quite possibly they do. In the above computer-enhanced illustration, independent universes are shown as independent circles or spheres. Spheres may be causally disconnected from all other spheres, meaning no communications can pass between them. Some spheres may
Saturday, November 13, 2010
Spiral Galaxy M66
Big beautiful spiral galaxy M66 lies a mere 35 million light-years away. About 100 thousand light-years across, the gorgeous island universe is well known to astronomers as a member of the Leo Triplet of galaxies. In M66, pronounced dust lanes and young, blue star clusters sweep along spiral arms dotted with the tell-tale glow of pink star forming regions. This colorful and deep view also
Friday, November 12, 2010
NGC 7023: The Iris Nebula
Like delicate cosmic petals, these clouds of interstellar dust and gas have blossomed 1,300 light-years away in the fertile star fields of the constellation Cepheus. Sometimes called the Iris Nebula and dutifully cataloged as NGC 7023, this is not the only nebula in the sky to evoke the imagery of flowers. Still, this beautiful digital image shows off the Iris Nebula's range of colors and
Thursday, November 11, 2010
Two Views, Two Crescents
Venus rose in a glowing dawn sky on November 5th, just before the Sun. For early morning risers, its brilliant crescent phase was best appreciated with binoculars or a small telescope. On that day the crescent Venus also appeared in close conjunction with another lovely crescent that hugs the eastern horizon in planet Earth's morning skies, the waning crescent Moon. The celestial photo-op is
Tuesday, August 10, 2010
The Sand Dunes of Titan
Why do some sand dunes on Titan appear backwards? Central Titan, it turns out, is covered by sand, some of which appears strange. Images from the Cassini spacecraft currently orbiting Saturn have uncovered long rows of huge sand dunes near Titan's equator that rise as high as 300 meters. Shadows indicate that most dune shapes are created by wind blowing from the west. The problem is, the
Monday, August 9, 2010
IRAS 05437+2502: An Enigmatic Star Cloud from Hubble
What's lighting up nebula IRAS 05437+2502? No one is sure. Particularly enigmatic is the bright upside-down V that defines the upper edge of this floating mountain of interstellar dust, visible near the image center. In general, this ghost-like nebula involves a small star forming region filled with dark dust that was first noted in images taken by the IRAS satellite in infrared light in
Sunday, August 8, 2010
Two Hours Before Neptune
Two hours before closest approach to Neptune in 1989, the Voyager 2 robot spacecraft snapped this picture. Clearly visible for the first time were long light-colored cirrus-type clouds floating high in Neptune's atmosphere. Shadows of these clouds can even be seen on lower cloud decks. Most of Neptune's atmosphere is made of hydrogen and helium, which is invisible. Neptune's blue
Saturday, August 7, 2010
Rainbow at Sunset
Where is the Sun when you see a rainbow? Behind you, of course. But you can see both a rainbow and the Sun (far right) side by side in this graceful panorama recorded on July 28. The cloudy sunset view covers a full 360 degrees around the horizon, composed using 20 individual images taken from an observatory on the outskirts of Potsdam, Germany. The rainbow itself is produced by sunlight
Friday, August 6, 2010
The Not So Quiet Sun
After a long solar minimum, the Sun is no longer so quiet. On August 1, this extreme ultraviolet snapshot of the Sun from the Solar Dynamics Observatory captured a complex burst of activity playing across the Sun's northern hemisphere. The false-color image shows the hot solar plasma at temperatures ranging from 1 to 2 million kelvins. Along with the erupting filaments and prominences, a
Thursday, August 5, 2010
M8: The Lagoon Nebula
This beautiful cosmic cloud is a popular stop on telescopic tours of the constellation Sagittarius. Eighteenth century cosmic tourist Charles Messier cataloged the bright nebula as M8. Modern day astronomers recognize the Lagoon Nebula as an active stellar nursery about 5,000 light-years distant, in the direction of the center of our Milky Way Galaxy. Remarkable features can be traced
Wednesday, August 4, 2010
Eclipse Shadow Cone Over Patagonia
Sometimes, during a total eclipse of the Sun, a strange shadow of darkness can be seen stretching off into the distance. Called shadow cones, they are visible because the Earth's atmosphere is not completely transparent, scattering sunlight and hence appearing blue during the day. Shadow cones are particularly dramatic for eclipses near the horizon, as geometry creates a long
Tuesday, August 3, 2010
The Planet and the Radio Dish
What planet is this? Although seemingly something out of The Little Prince, the planet is actually Earth. More specifically, it is a small part of the Earth incorporated into a four image stereographic "Little Planet " projection. The central fisheye image points down, while the surrounding wide-angle images were taken at a 30 degree tilt and added digitally later. Earth-anchored
Monday, August 2, 2010
Prometheus Creating Saturn Ring Streamers
What's causing those strange dark streaks in the rings of Saturn? Prometheus. Specifically, an orbital dance involving Saturn's moon Prometheus keeps creating unusual light and dark streamers in the F-Ring of Saturn. Now Prometheus orbits Saturn just inside the thin F-ring, but ventures into its inner edge about every 15 hours. Prometheus' gravity then pulls the closest ring
Sunday, August 1, 2010
Venus' Once Molten Surface
If you could look across Venus with radar eyes, what might you see? This computer reconstruction of the surface of Venus was created from data from the Magellan spacecraft. Magellan orbited Venus and used radar to map our neighboring planet's surface between 1990 and 1994. Magellan found many interesting surface features, including the large circular domes, typically 25-
Saturday, July 31, 2010
Four Planet Sunset
This mesmerizing sunset photo was taken from the summit of volcanic Mount Lawu, 3,265 meters above sea level, on July 21. The view looks west, toward the city lights of Surakarta (aka Solo), Central Java, Indonesia. Two other volcanic peaks, sharp Merapi (left) and Merbabu lie along the colorful horizon. Four planets shine in the twilight sky above them. Spread out near the plane of the
Friday, July 30, 2010
Eclipse on the Beach
As the New Moon's shadow slid across the southern Pacific on July 11, people gathered along the white, sandy Anakena Beach on the north side of Easter Island to watch a total solar eclipse. The experience was captured in this tantalizing composite image, constructed from a sequence of 50 consecutive exposures. At their center is the totally eclipsed Sun surrounded by a shimmering solar
Thursday, July 29, 2010
Sunset, Shadowrise
From central Australia, this serene 360 degree panorama follows a clear horizon as twilight began on May 28. At left, a bright western sky is still illuminated by the setting Sun. But sweeping right, toward a view centered on the countryside's dominating sandstone formation called Uluru or Ayers Rock, the sky takes on progressively darker hues and subtle colors. Behind Uluru is the shadow
Wednesday, July 28, 2010
The Trifid Nebula is Stars and Dust
Unspeakable beauty and unimaginable bedlam can be found together in the Trifid Nebula. Also known as M20, this photogenic nebula is visible with good binoculars towards the constellation of Sagittarius. The energetic processes of star formation create not only the colors but the chaos. The red-glowing gas results from high-energy starlight striking interstellar hydrogen gas. The dark dust
Tuesday, July 27, 2010
The Milky Way Over Bryce Canyon
What are those strange rock structures? They are towers and walls of sedimentary rock that are particularly plentiful in Bryce Canyon in Utah, USA. The rock columns may rise higher than 50 meters and are called hoodoos. On the far left is Thor's Hammer, perhaps the most famous hoodoo. The tall rock columns were carved, most typically, when a unusually dense cap of rock provided a layer
Monday, July 26, 2010
Lutetia: The Largest Asteroid Yet Visited
As humans explore the universe, the record for largest asteroid visited by a spacecraft has increased yet again. Earlier this month, ESA's robotic Rosetta spacecraft zipped past the asteroid 21 Lutetia taking data and snapping images in an effort to better determine the history of the asteroid and the origin of its unusual colors. Although of unknown composition, Lutetia is not massive
Sunday, July 25, 2010
Happy People Dancing on Planet Earth
What are these humans doing? Dancing. Many humans on Earth exhibit periods of happiness, and one method of displaying happiness is dancing. Happiness and dancing transcend political boundaries and occur in practically every human society. Above, Matt Harding traveled through many nations on Earth, started dancing, and filmed the result. The video is perhaps a dramatic example that
Saturday, July 24, 2010
Diamond Ring and Shadow Bands
As the total phase of July 11's solar eclipse came to an end, sunlight streaming past the edge of the Moon's silhouette created the fleeting appearance of a glistening diamond ring in the sky. Seen through a thin cloud layer from the French Polynesian atoll of Hao it also produced remarkable shadow bands, flickering across the dramatic scene. Projected onto the cloud layer, the shadow bands
Friday, July 23, 2010
Messier 76
"Nebula at the right foot of Andromeda ... " begins the description for the 76th object in Charles Messier's 18th century Catalog of Nebulae and Star Clusters. In fact, M76 is one of the fainter objects on the Messier list and is also known by the popular name of the "Little Dumbbell Nebula". Like its brighter namesake M27 (the Dumbbell Nebula), M76 is recognized as a planetary nebula - a
Thursday, July 22, 2010
The Meteor of 1860
Frederic Church (1826-1900), American landscape painter of the Hudson River School, painted what he saw in nature. And on July 20th, 1860, he saw a spectacular string of fireball meteors cross the Catskill evening sky, an extremely rare Earth-grazing meteor procession. From New York City, poet Walt Whitman (1819-1892) also wrote of the "... strange huge meteor procession, dazzling and clear,
Wednesday, July 21, 2010
The Crown of the Sun
During a total solar eclipse, the Sun's extensive outer atmosphere, or corona, is an inspirational sight. Subtle shades and shimmering features that engage the eye span a brightness range of over 10,000 to 1, making them notoriously difficult to capture in a single photograph. But this composite of 7 consecutive digital images over a range of exposure times comes close to revealing the crown
Tuesday, July 20, 2010
Lightning Over Athens
Have you ever watched a lightning storm in awe? Join the crowd. Oddly, nobody knows exactly how lightning is produced. What is known is that charges slowly separate in some clouds causing rapid electrical discharges (lightning), but how electrical charges get separated in clouds remains a topic of much research. Lightning usually takes a jagged course, rapidly heating a thin column
Monday, July 19, 2010
Dark River, Wide Field
A Dark River of dust seems to run from our Galactic Center, then pool into a starfield containing photogenic sky wonders. Scrolling right will reveal many of these objects including (can you find?) the bright orange star Antares, a blue(-eyed) horsehead nebula, the white globular star cluster M4, the bright blue star system Rho Ophiuchi, the dark brown Pipe nebula, the red Lagoon
Sunday, July 18, 2010
The Antennae Galaxies in Collision
Two galaxies are squaring off in Corvus and here are the latest pictures. But when two galaxies collide, the stars that compose them usually do not. That's because galaxies are mostly empty space and, however bright, stars only take up only a small amount of that space. During the slow, hundred million year collision, one galaxy can still rip the other apart gravitationally, and dust
Saturday, July 17, 2010
Galaxies in the River
Large galaxies grow by eating small ones. Even our own galaxy practices galactic cannibalism, absorbing small galaxies that get too close and are captured by the Milky Way's gravity. In fact, the practice is common in the universe and illustrated by this striking pair of interacting galaxies from the banks of the southern constellation Eridanus (The River). Located over 50 million light
Friday, July 16, 2010
Shaping NGC 6188
Dark shapes with bright edges winging their way through dusty NGC 6188 are tens of light-years long. The emission nebula is found near the edge of an otherwise dark large molecular cloud in the southern constellation Ara, about 4,000 light-years away. Formed in that region only a few million years ago, the massive young stars of the embedded Ara OB1 association sculpt the fantastic shapes
Thursday, July 15, 2010
Andes Sunset Eclipse
On July 11, after a long trek eastward across the southern Pacific Ocean, the Moon's shadow reached landfall in South America. In a total solar eclipse close to sunset, silhouetted Moon and Sun hugged the western horizon, seen here above the Andes mountains near the continent's southern tip. To enjoy a good vantage point, the photographer hiked to a windy spot about 400 meters above a lake
Wednesday, July 14, 2010
Functional/integration testing tool/frameworks for Flex/Flash based Rich Internet Applications.
Given the emergence of Web 2.0, developers are pushing the limits of what browsers can do. The original intent of a web browser was to deliver documents to end-users, not applications and thus, protocols and standards to meet this need where designed as such. Request-Response patterns have moved from full-up page refresh models to incremental interactions similar to thick-client applications.
Easter Island Eclipse
Makemake, a god in Easter Island mythology, may have smiled for a moment as clouds parted long enough to reveal this glimpse of July 11's total solar eclipse to skygazers. In the foreground of the dramatic scene, the island's famous large, monolithic statues (Moai) share a beachside view of the shimmering solar corona and the darkened daytime sky. Other opportunities to see the total phase
Tuesday, July 13, 2010
Mosaic: Welcome to Planet Earth
Welcome to Planet Earth, the third planet from a star named the Sun. The Earth is shaped like a sphere and composed mostly of rock. Over 70 percent of the Earth's surface is water. The planet has a relatively thin atmosphere composed mostly of nitrogen and oxygen. This picture of Earth, dubbed Blue Marble, was taken from Apollo 17 in 1972 and features Africa and Antarctica. It is
Monday, July 12, 2010
Moons Beyond the Rings of Saturn
What's happened to that moon of Saturn? Nothing -- Saturn's moon Rhea is just partly hidden behind Saturn's rings. In April, the robotic Cassini spacecraft now orbiting Saturn took this narrow-angle view looking across the Solar System's most famous rings. Rings visible in the foreground include the thin F ring on the outside and the much wider A and B rings just interior to it.
Sunday, July 11, 2010
Warped Sky: Star Trails Panorama
What's happened to the sky? A time warp, of sorts, and a digital space warp too. The time warp occurs because this image captured in a single frame a four hour exposure of the night sky. As a result, prominent star trails are visible. The space warp occurs because the picture is actually a full 360 degree panorama, horizontally compressed to fit your browser. As the Earth
Saturday, July 10, 2010
Ecliptic New Zealand
Four bright celestial beacons and a faint triangle of light follow the plane of the ecliptic as it arcs high through this southern hemisphere night skyscape. Seen on a July winter night from Lake Taupo on New Zealand's North Island, the line-up features Venus, Regulus (alpha star of Leo), Mars, and Saturn from lower left to upper right. Just put your cursor over the picture to identify the
Wednesday, June 30, 2010
Fast Gas Bullet from Cosmic Blast N49
What is that strange blue blob on the far right? No one is sure, but it might be a speeding remnant of a powerful supernova that was unexpectedly lopsided. Scattered debris from supernova explosion N49 lights up the sky in this gorgeous composited image based on data from the Chandra and Hubble Space Telescopes. Glowing visible filaments, shown in yellow, and X-ray hot gas, shown in blue,
Tuesday, June 29, 2010
Trees, Sky, Galactic Eye
Is beauty in the eye of this beholder? Earlier this month, over Réunion Island in the Indian Ocean, a playful photographer with an eye for the sky took eight images and composed the above intriguing picture. The full fisheye frame shows everything above the horizon, including a lamp-illuminated landscape around the edges, and the zenith of the sky directly overhead. The image, however,
Monday, June 28, 2010
A Partial Lunar Eclipse
What's happened to the Moon? This past weekend, once again, part of the Moon moved through the Earth's shadow. This happens about once or twice a year, on the average, but not each month since the Moon's orbit around the Earth is slightly tilted. Pictured above, the face of a full moon is partly blocked by Earth's clouds, and partly darkened on the upper right by Earth's umbral shadow.
Sunday, June 27, 2010
All the Colors of the Sun
It is still not known why the Sun's light is missing some colors. Shown above are all the visible colors of the Sun, produced by passing the Sun's light through a prism-like device. The above spectrum was created at the McMath-Pierce Solar Observatory and shows, first off, that although our white-appearing Sun emits light of nearly every color, it does indeed appear brightest in
Saturday, June 26, 2010
Young Star Cluster Westerlund 2
Dusty stellar nursery RCW 49 surrounds young star cluster Westerlund 2 in this remarkable composite skyscape from beyond the visible spectrum of light. Infrared data from the Spitzer Space Telescope is shown in black and white, complementing the Chandra X-ray image data (in false color) of the hot energetic stars within the cluster's central region. Looking toward the grand southern
Friday, June 25, 2010
The Starry Night of Alamut
A meteor's streak and the arc of the Milky Way hang over the imposing mountain fortress of Alamut in this starry scene. Found in the central Alborz Mountains of Iran, Alamut Castle was built into the rock in the 9th century. The name means Eagle's Nest. Home of the legendary Assassins featured in the adventure movie Prince of Persia, Alamut was also historically a center for libraries and
Thursday, June 24, 2010
The Dark Tower in Scorpius
In silhouette against a crowded star field toward the constellation Scorpius, this dusty cosmic cloud evokes for some the image of an ominous dark tower. In fact, clumps of dust and molecular gas collapsing to form stars may well lurk within the dark nebula, a structure that spans almost 40 light-years across the gorgeous telescopic view. Known as a cometary globule, the swept-back cloud,
Wednesday, June 23, 2010
Sunset from the International Space Station
What are these strange color bands being seen from the International Space Station? The Sun setting through Earth's atmosphere. Pictured above, a sunset captured last month by the ISS's Expedition 23 crew shows in vivid detail many layers of the Earth's thin atmosphere. Part of the Earth experiencing night crosses the bottom of the image. Above that, appearing in deep orange and
Tuesday, June 22, 2010
Islands of Four Mountains from Above
Our Earth is covered by volcanoes. Volcanoes are breaks in the Earth's cool surface where hot liquid rock from the interior comes out -- sometimes suddenly. In the above image from the ASTER camera aboard NASA's orbiting Terra satellite, snow-capped volcanoes are seen from overhead that compose the picturesque Islands of the Four Mountains in the Aleutian Islands, Alaska, USA. The
Monday, June 21, 2010
NASA FACTS - Exploring the Universe
NASA FACTS - LIFE ON EARTHNASA FACTS - HUMAN IN SPACENASA FACTS - Exploring the UniverseNASA FACTS - Exploring the UniverseWhen the Cassini-Huygens spacecraft arrives at Saturn, it will be traveling so fast that engineers will need to burn the spacecraft's engines for 97 minutes just to slow it down. If mission engineers don't do this, the spacecraft would keep on going, instead of entering the
NASA FACTS - HUMAN IN SPACE
NASA FACTS - LIFE ON EARTHNASA FACTS - HUMAN IN SPACENASA FACTS - Exploring the UniverseNASA FACTS - HUMAN IN SPACEEach Space Shuttle astronaut is allotted 3.8 pounds of food per day (including the one pound of packaging). Foods are individually packaged and stowed for easy handling in the zero gravity of space. All food is precooked or processed so it requires no refrigeration and is either
NASA FACTS - LIFE ON EARTH
NASA FACTS - LIFE ON EARTHNASA FACTS - HUMAN IN SPACENASA FACTS - Exploring the UniverseNASA FACTS - LIFE ON EARTHOn March 16, 1926, Dr. Robert H. Goddard successfully launched the first liquid fueled rocket. The launch took place at Auburn, Massachusetts, and is regarded by flight historians to be as significant as the Wright Brothers flight at Kitty Hawk. On October 14, 1947, in the rocket
Sunrise Solstice at Stonehenge
Today the Sun reaches its northernmost point in planet Earth's sky. Called a solstice, the date traditionally marks a change of seasons -- from spring to summer in Earth's Northern Hemisphere and from fall to winter in Earth's Southern Hemisphere. The above image was taken during the week of the 2008 summer solstice at Stonehenge in United Kingdom, and captures a picturesque sunrise
Sunday, June 20, 2010
Abell 2218: A Galaxy Cluster Lens
What are those strange filaments? Background galaxies. Gravity can bend light, allowing huge clusters of galaxies to act as telescopes, and distorting images of background galaxies into elongated strands. Almost all of the bright objects in this Hubble Space Telescope image are galaxies in the cluster known as Abell 2218. The cluster is so massive and so compact that its gravity bends
Saturday, June 19, 2010
Stereo Itokawa
Get out your red/blue glasses and float next to asteroid Itokawa, a diminutive world of the solar system only half a kilometer across. Boulders strewn across its rough surface and the lack of craters indicate that this asteroid is a rubble pile, formed as smaller pieces collected and were kept together by gravity. The stereo view was constructed from images made by the Hayabusa spacecraft when
Friday, June 18, 2010
Star Trails and Tajinastes
What bizarre planet do these alien creatures inhabit? It's only planet Earth, of course. In this well-composed scene, the sky is filled with star trails around the north celestial pole. A reflection of the Earth's daily rotation on its axis, star trails are familiar to photographers who fix their camera to a tripod and make long exposures of the night sky. But the imposing forms gazing
Friday, June 11, 2010
Hydrogen in M51
Perhaps the original spiral nebula, M51 is a large galaxy, over 60,000 light-years across, with a readily apparent spiral structure. Also cataloged as NGC 5194, M51 is a part of a well-known interacting galaxy pair, its spiral arms and dust lanes clearly sweeping in front of companion galaxy NGC 5195 (top). This dramatically processed color composite combines M51 image data from the Calar
Thursday, June 10, 2010
Regulus and the Red Planet
Leo's royal star Regulus and red planet Mars appear in a colorful pairing just above the horizon in this starry skyscape. The photo was taken on June 4th from Oraman, a mountainous region of Kurdistan in western Iran near the border with Iraq. The marked color contrast between Mars and the bright blue star was easy to discern by eye, but is further enhanced in the picture through the use of a
Wednesday, June 9, 2010
Orange Sun Simmering
Even a quiet Sun can be a busy place. And over the deep Solar Minimum of the past few years, our Sun has been unusually quiet. The above image, taken last week in a single color of light called Hydrogen Alpha and then false colored, records a great amount of detail of the simmering surface of our parent star. The gradual brightening towards the Sun's edge in this color-inverted image,
Tuesday, June 8, 2010
Comet McNaught Becoming Visible to the Unaided Eye
A new comet is brightening and is now expected to become visible to the unaided eye later this month. C/2009 R1 (McNaught) is already showing an impressive tail and is currently visible through binoculars. The above image, taken yesterday from the Altamira Observatory in the Canary Islands and spanning about five degrees, shows an impressive green coma and a long ion tail in front of
Falcon 9 Launches to Orbit
A new rocket, the Falcon 9, was launched successfully from Cape Canaveral, Florida, USA, last week. The Falcon 9, standing about as high as a 15-floor building, was developed by the commercial SpaceX corporation as a step toward a relatively inexpensive space launch system. Falcon 9's success follows successful launches of the Falcon 1 last year. Pictured above, a movie of the Falcon 9's
Sunday, June 6, 2010
Lunokhod: Reflections on a Moon Robot
It may look like some sort of cute alien robot, but it was created here on Earth, launched to the Moon in 1970, and now reflects laser light in a scientifically useful way. On November 17, 1970 the Soviet Luna 17 spacecraft landed the first roving remote-controlled robot on the Moon. Known as Lunokhod 1, it weighed just under 2,000 pounds and was designed to operate for 90 days while
Saturday, June 5, 2010
Jupiter meets Uranus at dawn
In the Northern Hemisphere, the Sun will be at its highest point in the sky at local noon. Conversely, the ecliptic hangs lowest in the sky at local midnight.June 21 marks the first day of summer in the Northern Hemisphere. This places the Sun at its highest point in the sky at local noon. Conversely, the ecliptic — the apparent path of the Sun and planets across the sky — hangs lowest in the
Thor's Helmet
This helmet-shaped cosmic cloud with wing-like appendages is popularly called Thor's Helmet. Heroically sized even for a Norse god, Thor's Helmet is about 30 light-years across. In fact, the helmet is actually more like an interstellar bubble, blown as a fast wind from the bright, massive star near the bubble's center sweeps through a surrounding molecular cloud. Known as a Wolf-Rayet star
Friday, June 4, 2010
Hubble Remix: Active Galaxy NGC 1275
Active galaxy NGC 1275 is the central, dominant member of the large and relatively nearby Perseus Cluster of Galaxies. Wild-looking at visible wavelengths, the active galaxy is also a prodigious source of x-rays and radio emission. NGC 1275 accretes matter as entire galaxies fall into it, ultimately feeding a supermassive black hole at the galaxy's core. This color composite image,
Thursday, June 3, 2010
Jupiter from the Stratosphere
SOFIA, the Stratospheric Observatory for Infrared Astronomy, captured its "first light" images on May 26, from an altitude of 35,000 feet. While flying above most of planet Earth's infrared-absorbing water vapor, SOFIA's premier infrared views of the cosmos included this remarkable false-color image (right panel) of Jupiter. For comparison, on the left is a recent, ground-based visible
Wednesday, June 2, 2010
A Twisted Meteor Trail Over Tenerife
Did this meteor take a twisting path? No one is sure. Considered opinions are solicited. Meteors, usually sand sized grains that originate in comets, will typically disintegrate as they enter the Earth's atmosphere. A fast moving meteor ionizes molecules in the Earth's atmosphere that subsequently glow when they reacquire electrons. Meteor paths that twist noticeably have
Tuesday, June 1, 2010
Heart and Soul Nebulas in Infrared
Is the heart and soul of our Galaxy located in Cassiopeia? Possibly not, but that is where two bright emission nebulas nicknamed Heart and Soul can be found. The Heart Nebula, officially dubbed IC 1805 and visible in the above right, has a shape in optical light reminiscent of a classical heart symbol. The above image, however, was taken in infrared light by the
Monday, May 31, 2010
Moon Afire
The photo above shows a young Moon amidst a sea of “burning” clouds as observed from near Athens, Greece on June 25, 2009 at 8:37 p.m. local time. A few well positioned and reddened clouds, over the darkened portion of this waxing crescent Moon, give the illusion that something nefarious has happened to our reliable companion. At sunset or sunrise the increased path length of sunlight, as
Moons and Rings Before Saturn
While cruising around Saturn, be on the lookout for picturesque juxtapositions of moons and rings. Another striking alignment occurred last March in the view of humanity's Saturn-orbiting Cassini spacecraft. Rhea, one of Saturn's larger moons, was caught passing Epimetheus, one of Saturn's smaller moons. Epimetheus, as pictured above, is actually well behind the heavily cratered Rhea.
LDN 1622
LDN 1622 (Lynd's Dark Nebula) appears against a light background of glowing hydrogen gas. (5.2-inch APM/TMB 130/780 apochromatic refractor at f/6, SBIG ST-4000XCM CCD cameras, sixteen 15-minute exposures, stacked) Hunter Wilson took this image from Lexington, Ohio.
City Lights at Night along the France-Italy Border
The brightly lit metropolitan areas of Torino (Italy), Lyon, and Marseille (both in France) stand out amidst numerous smaller urban areas in this dramatic astronaut photograph. The image captures the nighttime appearance of the France-Italy border. The southwestern end of the Alps Mountains separates the two countries. The island of Corsica is visible in the Ligurian Sea to the south (image top).
Partial Lunar Eclipse of June 26
The first lunar eclipse of 2010 occurs at the Moon's ascending node in western Sagittarius about 3° east of the Lagoon Nebula (M8). It is visible from much of the Americas, the Pacific and eastern Asia (Figure 2). The Moon's contact times with Earth's shadows are listed below.Partial Eclipse Begins: 10:16:57 UTGreatest Eclipse: 11:38:27 UTPartial Eclipse Ends: 12:59:50 UTPenumbral Eclipse Ends:
Thursday, May 20, 2010
NASA - Task Force on Space Industry Workforce and Economic Development
A Bold New Vision for Florida's Space Coast
"I am committed to taking additional steps to help local economies like Florida's Space Coast adapt and thrive in the years ahead.
The men and women who work in Florida's aerospace industry are some of the most talented and highly trained in the Nation… To these ends, I hereby direct the following: Establishment of the Task Force on Space Industry
"I am committed to taking additional steps to help local economies like Florida's Space Coast adapt and thrive in the years ahead.
The men and women who work in Florida's aerospace industry are some of the most talented and highly trained in the Nation… To these ends, I hereby direct the following: Establishment of the Task Force on Space Industry
Monday, May 17, 2010
Solar Energy For Older Kids
Solar Energy For Students and EducatorsSolar Energy Younger KidsSolar Energy Older KidsSolar Energy Older Kids1. What is photovoltaics?Photovoltaic (fo-to-vol-ta-ik) systems are solar systems that produce electricity directly from sunlight. The term "photo" comes from the Greek "phos," meaning light. "Voltaic" is named for Alessandro Volta (1745-1827), a pioneer in the study of electricity
Solar Energy For Younger kids
Solar Energy For Students and EducatorsSolar Energy Younger kidsSolar Energy Older kidsSolar Energy Younger kids1. What's so great about the sun, anyway?The sun is amazing. Without it, none of us would be here, and there would be no life on earth. It is bigger than anything we can really imagine--a million planet earths would fit inside it! It takes millions of years for the energy from the
Sunday, May 16, 2010
Solar Energy For Students and Educators
Solar Energy For Students and EducatorsWe are glad you were interested in renewable energy! We do a lot of things in Solar Energy International Solar in Schools program, but we don't do homework.Solar Energy Younger kidsSolar Energy Older kidsIf you need more information than you find on this site, check out the following links:Kids Saving Energy - Information on solar, wind, geothermal,
Wednesday, April 28, 2010
Sunset on a Golden Sea
On April 17, the sky was clear and the Sun's colour was spectacular as night approached. This striking telescopic view even captures the Sun's swollen and distorted shape from the southern coast of the UK. Reflecting a bright column of sunlight, the sea also appears golden, with the horizon marked by the city of Portsmouth. Were the colours made more intense by volcanic dust? Maybe not.
Tuesday, April 27, 2010
Eruption of Gaua Volcano
In early April 2010, activity at Gaua Volcano in the Vanuatu Archipelago increased. The Vanuatu Geohazards Observatory reported that the ash column, which first appeared in October 2009, became thicker and higher (compare this image to one from February 14th), and volcanic bombs were frequently sighted from the coastal villages surrounding the volcano. According to Radio New Zealand
NASA, Park Service Promote Climate Science Education for Kids
A team from NASA, the National Park Service, and the U.S. Fish and Wildlife Service today marked the 40th anniversary of Earth Day by launching the first of three interactive, educational climate science activities on the National Park Service WebRangers site.The series introduces young people to climate change and its potential impact on their families, their neighborhoods, and their
Common Extensible Cryogenic Engine Tests
NASA is developing and testing new and innovative technologies that will enable the future of safe and efficient human exploration.Description: Pratt & Whitney Rocketdyne (PWR) and NASA successfully completed four deep throttling Common Extensible Cryogenic Engine (CECE) demonstrations, improving available cryogenic engine propulsion technology. The tests demonstrated that the engines could
Friction Stir Welded Spin-Formed Dome
NASA is developing and testing new and innovative technologies that will enable the future of safe and efficient human exploration.Description: NASA worked with MT Aerospace in Augsburg, Germany, to use their patented concave spin forming process and tooling to create new fuel tank domes. The process starts by friction stir welding (FSW) small metal plates together to create a large,
The Bloop: A Mysterious Sound from the Deep Ocean
What created this strange sound in Earth's Pacific Ocean? Pictured above is a visual representation of a loud and unusual sound, dubbed a Bloop, captured by deep sea microphones in 1997. In the above graph, time is shown on the horizontal axis, deep pitch is shown on the vertical axis, and brightness designates loudness. Although Bloops are some of the loudest sounds of any type
Monday, April 26, 2010
Planck Sees a Cold and Stormy Orion
The big hunter in the sky is seen in a new light by Planck, a European Space Agency mission with significant NASA participation. The long-wavelength image shows most of the constellation Orion, highlighting turbid clouds of cold material, where new stars are being stirred into existence. The Planck mission is busy surveying the whole sky at longer wavelengths of light than we can see with
Cassini Measures Tug of Enceladus
NASA's Cassini spacecraft will be gliding low over Saturn's moon Enceladus for a gravity experiment designed to probe the moon's interior composition. The flyby, which will take Cassini through the water-rich plume flaring out from Enceladus's south polar region, will occur on April 27 Pacific time and April 28 UTC. At closest approach, Cassini will be flying about 100 kilometers (60 miles)
Dust Pillar of the Carina Nebula
Inside the head of this interstellar monster is a star that is slowly destroying it. The monster, on the right, is actually an inanimate pillar of gas and dust that measures over a light year in length. The star, not itself visible through the opaque dust, is bursting out partly by ejecting energetic beams of particles. Similar epic battles are being waged all over the
Sunday, April 25, 2010
Planetary Nebula Mz3: The Ant Nebula
Why isn't this ant a big sphere? Planetary nebula Mz3 is being cast off by a star similar to our Sun that is, surely, round. Why then would the gas that is streaming away create an ant-shaped nebula that is distinctly not round? Clues might include the high 1000-kilometer per second speed of the expelled gas, the light-year long length of the structure, and the magnetism of
Saturday, April 24, 2010
NGC 1055: Galaxy in a Box
Big, beautiful spiral galaxy NGC 1055 is a dominant member of a small galaxy group a mere 60 million light-years away toward the intimidating constellation Cetus. Seen edge-on, the island universe spans about 100,000 light-years, similar in size to our own Milky Way. Colorful, spiky stars in this cosmic portrait of NGC 1055 are in the foreground, well within the Milky Way. But along with a
Friday, April 23, 2010
Starry-Eyed Hubble Celebrates 20 Years of Awe and Discovery
This brand new Hubble photo is of a small portion of one of the largest seen star-birth regions in the galaxy, the Carina Nebula. Towers of cool hydrogen laced with dust rise from the wall of the nebula. The scene is reminiscent of Hubble's classic "Pillars of Creation" photo from 1995, but is even more striking in appearance. The image captures the top of a three-light-year-tall pillar of
Hubble Celebrates 20 Years of Astonishing Discoveries
Space shuttle Discovery roared into orbit April 24, 1990, with a most precious cargo, NASA's Hubble Space Telescope. In the two decades since, teams of astronauts working from other shuttles repaired the orbiting eye on the universe and extended its abilities far beyond what was thought possible for longer than many thought realistic.Hubble, named for groundbreaking astronomer Edwin Hubble,
SDO: The Extreme Ultraviolet Sun
Don't panic, the Sun has not gone wild. But this wild-looking portrait of the nearest star to planet Earth was made on March 30th by the recently launched Solar Dynamics Observatory (SDO). Shown in false-color, the composite view covers extreme ultraviolet wavelengths and traces hot plasma at temperatures approaching 1 million kelvins. At full resolution, SDO image data is intended to
Thursday, April 22, 2010
Venus, Mercury, and Moon
Earlier this month, Venus and Mercury climbed into the western twilight, entertaining skygazers around planet Earth in a lovely conjunction of evening stars. Combining 8 images spanning April 4 through April 15, this composite tracks their progress through skies above Portsmouth, UK. Each individual image was captured at 19:50 UT. The sequential path for both bright planets begins low and to
Wednesday, April 21, 2010
Wide Angle: The Cat's Paw Nebula
Nebulae are perhaps as famous for being identified with familiar shapes as perhaps cats are for getting into trouble. Still, no known cat could have created the vast Cat's Paw Nebula visible in Scorpius. At 5,500 light years distant, Cat's Paw is an emission nebula with a red color that originates from an abundance of ionized hydrogen atoms. Alternatively known as the
Tuesday, April 20, 2010
Saturn's Moons Dione and Titan from Cassini
What would it be like to see a sky with many moons? Such is the sky above Saturn. When appearing close to each other, moons will show a similar phase. A view with two of the more famous moons of Saturn in gibbous phase was captured last month by the robot spacecraft Cassini now orbiting Saturn. Titan, on the left, is among the largest moons in the Solar System and is perpetually
Monday, April 19, 2010
Ash and Lightning Above an Icelandic Volcano
Why did the recent volcanic eruption in Iceland create so much ash? Although the large ash plume was not unparalleled in its abundance, its location was particularly noticeable because it drifted across such well populated areas. The Eyjafjallajökull volcano in southern Iceland began erupting on March 20, with a second eruption starting under the center of a small glacier on April 14.
Sunday, April 18, 2010
Large Eruptive Prominence Imaged by STEREO
What's happened to our Sun? Last week, it produced one of the largest eruptive prominences ever seen. Pictured above, the prominence erupted in only a few hours and was captured in movie form by NASA's twin Sun-orbiting STEREO satellites. A quiescent solar prominence is a cloud of hot solar gas held above the Sun's surface by the Sun's magnetic field. Unpredictably, however,
Saturday, April 17, 2010
Damage to Apollo 13
After an oxygen tank exploded and crippled their service module, the Apollo 13 astronauts were forced to abandon plans to make the third manned lunar landing. The extent of the damage is revealed in this grainy, grim photo, taken as the service module was drifting away, jettisoned only hours prior to the command module's reentry and splashdown. An entire panel on the side of the service
Friday, April 16, 2010
Bright Points on the Quiet Sun
Up close, the solar surface is a striking patch work of granules in this very high resolution picture of the quiet Sun. Caused by convection, the granules are hot, rising columns of plasma edged by dark lanes of cooler, descending plasma. But the high-resolution view reveals that the dark lanes are dotted with many small, contrasting bright points. Constantly present on the solar surface, the
Thursday, April 15, 2010
NGC 4651: The Umbrella Galaxy
Spiral galaxy NGC 4651 is a mere 35 million light-years distant, toward the well-groomed constellation Coma Berenices. About 50 thousand light-years across, this galaxy is seen to have a faint umbrella-shaped structure (right) that seems to extend some 50 thousand light-years farther, beyond the bright galactic disk. The giant cosmic umbrella is now known to be composed of tidal star streams.
Thursday, March 4, 2010
NGC 4565: Galaxy on Edge
Magnificent spiral galaxy NGC 4565 is viewed edge-on from planet Earth. Also known as the Needle Galaxy for its narrow profile, bright NGC 4565 is a stop on many telescopic tours of the northern sky, in the faint but well-groomed constellation Coma Berenices. This sharp, colorful image reveals the galaxy's bulging central core cut by obscuring dust lanes that lace NGC 4565's thin galactic plane
Pauli Exclusion Principle: Why You Don't Implode
Why doesn't matter just bunch up? The same principle that keeps neutron stars and white dwarf stars from imploding also keeps people from imploding and makes normal matter mostly empty space. The observed reason is known as the Pauli Exclusion Principle. The principle states that identical fermions -- one type of fundamental matter -- cannot be in the same place at the same time and with
Wednesday, March 3, 2010
The International Space Station from Above
The International Space Station (ISS) is the largest human-made object ever to orbit the Earth. The ISS is so large that it can be seen drifting overhead with the unaided eye, and is frequently imaged from the ground in picturesque fashion. Last month, the station was visited again by space shuttle, which resupplied the station and added a new module. The ISS is currently
Tuesday, March 2, 2010
M78 and Reflecting Dust Clouds in Orion
An eerie blue glow and ominous columns of dark dust highlight M78 and other bright reflection nebula in the constellation of Orion. The dark filamentary dust not only absorbs light, but also reflects the light of several bright blue stars that formed recently in the nebula. Of the two reflection nebulas pictured above, the more famous nebula is M78, in the image center, while NGC 2071 can
Monday, March 1, 2010
Slope Streaks in Acheron Fossae on Mars
What creates these picturesque dark streaks on Mars? No one knows for sure. A leading hypothesis is that streaks like these are caused by fine grained sand sliding down the banks of troughs and craters. Pictured above, dark sand appears to have flowed hundreds of meters down the slopes of Acheron Fossae. The sand appears to flow like a liquid around boulders, and, for some reason,
Sunday, February 28, 2010
Pauli Exclusion Principle: Why You Don't Implode
Why doesn't matter just bunch up? The same principle that keeps neutron stars and white dwarf stars from imploding also keeps people from imploding and makes normal matter mostly empty space. The observed reason is known as the Pauli Exclusion Principle. The principle states that identical fermions -- one type of fundamental matter -- cannot be in the same place at the same time and
Saturday, February 27, 2010
Dawn's Endeavour
On February 21st, the Space Shuttle Endeavour and the International Space Station (ISS) flew through the sky near dawn over Whitby, Ontario, Canada. Along with star trails, both were captured in this single time exposure. Glinting in sunlight 350 kilometers above the Earth, Endeavour slightly preceeded the ISS arcing over the horizon. But the brighter trail and the brighter flare belongs to
Dawn's Endeavour
On February 21st, the Space Shuttle Endeavour and the International Space Station (ISS) flew through the sky near dawn over Whitby, Ontario, Canada. Along with star trails, both were captured in this single time exposure. Glinting in sunlight 350 kilometers above the Earth, Endeavour slightly preceeded the ISS arcing over the horizon. But the brighter trail and the brighter flare belongs to
Friday, February 26, 2010
Chasing Carina
A jewel of the southern sky, the Great Carina Nebula, aka NGC 3372, spans over 300 light-years. Near the upper right of this expansive skyscape, it is much larger than the more northerly Orion Nebula. In fact, the Carina Nebula is one of our galaxy's largest star-forming regions and home to young, extremely massive stars, including the still enigmatic variable Eta Carinae, a star with well over
Moon, Mercury, Jupiter, Mars
When the Moon rose in predawn skies on February 23rd, it sported a sunlit crescent. It also offered early morning risers a tantalizing view of earthshine, the dark portion of the lunar disk illuminated by sunlight reflected from the Earth. Of course, on that morning a remarkable conjunction with three wandering planets added an impressive touch to the celestial scene. Recorded just before
Chasing Carina
A jewel of the southern sky, the Great Carina Nebula, aka NGC 3372, spans over 300 light-years. Near the upper right of this expansive skyscape, it is much larger than the more northerly Orion Nebula. In fact, the Carina Nebula is one of our galaxy's largest star-forming regions and home to young, extremely massive stars, including the still enigmatic variable Eta Carinae, a star with well
Thursday, February 25, 2010
Edge-on Spiral Galaxy NGC 891
This beautiful cosmic portrait features NGC 891. The spiral galaxy spans about 100 thousand light-years and is seen almost exactly edge-on from our perspective. In fact, about 30 million light-years distant in the constellation Andromeda, NGC 891 looks a lot like our Milky Way. At first glance, it has a flat, thin, galactic disk and a central bulge cut along the middle by regions of dark
Edge-on Spiral Galaxy NGC 891
This beautiful cosmic portrait features NGC 891. The spiral galaxy spans about 100 thousand light-years and is seen almost exactly edge-on from our perspective. In fact, about 30 million light-years distant in the constellation Andromeda, NGC 891 looks a lot like our Milky Way. At first glance, it has a flat, thin, galactic disk and a central bulge cut along the middle by regions of dark
Wednesday, February 24, 2010
ICESat's Notable Moments in Science
Over the last decade, NASA has launched a series of satellites to monitor the health of our planet. One such satellite -- the Ice, Cloud and land Elevation Satellite (ICESat) -- has provided a sustained, big-picture look at ice thickness at Earth's polar regions.Now, after seven years in orbit and 15 laser-operation campaigns, ICESat has stopped collecting science data. The last of three
SDO Launches
The Atlas V roared to life Thursday morning to send the Solar Dynamics Observatory into space on its mission to evaluate the complex mechanisms of the sun. Liftoff came on-time at 10:23 a.m. EST from Launch Complex 41 at Cape Canaveral Air Force Station on Florida's Atlantic Coast.The SDO spacecraft is in good shape midway through the launch phase that will eventually place it in an elongated
Astronaut Installs Panoramic Space Window
This space job was almost complete. Floating just below the International Space Station, astronaut Nicholas Patrick put some finishing touches on the newly installed cupola space windows last week. Patrick was a mission specialist onboard the recently completed space shuttle Endeavor's STS-130 mission to the ISS. Pictured, Patrick floats near the outermost of seven windows on the new cupola of
Tuesday, February 23, 2010
Piecing Together the Temperature Puzzle
NASA has released a new video and image gallery that illustrate how NASA satellites enable scientists to observe climate change today and make predictions for the future.The video, “Piecing Together the Temperature Puzzle,” explores possible causes for rising global temperatures.It explains what role fluctuations in the solar cycle, changes in snow and cloud cover, and rising levels of
Cold Snaps Plus Global Warming Do Add Up
That feeling of numbness in your toes, even inside your thickest boots, is not lying to you. It’s been very cold so far this winter in most of the U.S. and many places at middle latitudes in the Northern Hemisphere. Washington, D.C., London and Seoul have already shoveled themselves out from major snowfalls. And over the course of 2009, average temperatures across some parts of the U.S. were
Temperature Trackers Watch Our Watery World
Climatologists have long known that human-produced greenhouse gases have been the dominant drivers of Earth's observed warming since the start of the Industrial Revolution. But other factors also affect our planet's temperature. Of these, the ocean plays a dominant role. Its effects helped nudge global temperatures slightly higher in 2009, and, according to NASA scientists, could well
Cassini Finds Plethora of Plumes, Hotspots at Enceladus
Newly released images from last November's swoop over Saturn's icy moon Enceladus by NASA's Cassini spacecraft reveal a forest of new jets spraying from prominent fractures crossing the south polar region and yield the most detailed temperature map to date of one fracture. The new images from the imaging science subsystem and the composite infrared spectrometer teams also include the best
NASA Unveils New Space-Weather Science Tool
When NASA’s satellite operators need accurate, real-time space-weather information, they turn to the Community Coordinated Modeling Center (CCMC) of the Space Weather Laboratory at NASA's Goddard Space Flight Center in Greenbelt, Md. The CCMC’s newest and most advanced space-weather science tool is the Integrated Space Weather Analysis (iSWA) system.The iSWA is a robust, integrated system
Exceptional Rocket Waves Destroy Sun Dog
What created those rocket waves, and why did they destroy that sun dog? Close inspection of the above image shows not only a rocket rising near the center, but unusual air ripples around it and a colorful sundog to the far right. The rocket, carrying the Solar Dynamics Observatory (SDO), lifted off two weeks ago from Cape Canaveral, Florida, USA into a cold blue sky. The SDO is designed to
Monday, February 22, 2010
Galaxy Group Hickson 31
Will the result of these galactic collisions be one big elliptical galaxy? Quite possibly, but not for another billion years. Pictured above, several of the dwarf galaxies of in the Hickson Compact Group 31 are seen slowly merging. Two of the brighter galaxies are colliding on the far left, while an elongated galaxy above is connected to them by an unusual bridge of stars. Inspection
Sunday, February 21, 2010
NGC 2440: Cocoon of a New White Dwarf
Like a butterfly, a white dwarf star begins its life by casting off a cocoon that enclosed its former self. In this analogy, however, the Sun would be a caterpillar and the ejected shell of gas would become the prettiest of all! In the above cocoon, the planetary nebula designated NGC 2440, contains one of the hottest white dwarf stars known. The white dwarf can be seen as the bright dot
Saturday, February 20, 2010
Geostationary Highway
Put a satellite in a circular orbit about 42,000 kilometers from the center of the Earth (36,000 kilometers or so above the surface) and it will orbit once in 24 hours. Because that matches Earth's rotation period, it is known as a geosynchronous orbit. If that orbit is also in the plane of the equator, the satellite will hang in the sky over a fixed location in a geostationary orbit. As
Can Air Pollution Cause Lightning Storms?
Strange as it may seem, the most recent Image of the Week entry from the Climate and Radiation Branch at Goddard Space Flight Center suggests that air pollution does indeed exacerbate lightning storms. The graphic, created by Goddard meteorologist Thomas Bell, shows that rainfall and lightning rarely peaks over the weekend in the southeastern United States. In fact, lightning hasn't peaked on a
How Do Global Soot Models Measure Up?
A image from a simulation that shows the spread of black carbon aerosols in Asia. Areas where the air was thick with the pollution particles are white, while lower concentrations are transparent purple. (Credit: Earth Observatory)As NASA atmospheric scientist Eric Wilcox recently told Time magazine, emerging evidence suggests that a short-lived type of air pollution called black carbon—known
Friday, February 19, 2010
WISE Infrared Andromeda
This sharp, wide-field view features infrared light from the spiral Andromeda Galaxy (M31). Dust heated by Andromeda's young stars is shown in yellow and red, while its older population of stars appears as a bluish haze. The false-color skyscape is a mosaic of images from NASA's new Wide-field Infrared Survey Explorer (WISE) satellite. With over twice the diameter of our Milky Way, Andromeda
Behold the Violent History of Saturn's White Whale Moon
Like the battered white whale Moby Dick taunting Captain Ahab, Saturn's moon Prometheus surges toward the viewer in a 3-D image from NASA's Cassini spacecraft. The image exposes the irregular shape and circular surface scars on Prometheus, pointing to a violent history. These craters are probably the remnants from impacts long ago. Prometheus is one of Saturn's innermost moons. It
Thursday, February 18, 2010
NASA's Chandra Reveals Origin of Key Explosions
New findings from NASA's Chandra X-ray Observatory have provided a major advance in understanding a type of supernova critical for studying the dark energy that astronomers think pervades the universe. The results show mergers of two dense stellar remnants are the likely cause of many of the supernovae that have been used to measure the accelerated expansion of the universe. These supernovae --
Vesta Near Opposition
Main belt asteroid 4 Vesta is at its brightest now. The small world is near opposition (opposite the Sun in the sky) and closest to Earth. But even at its brightest, Vesta is just too faint to spot with the naked-eye. Still, over the next few days it will be relatively easy to find in the constellation Leo, sharing a typical binocular field of view with bright star Gamma Leonis (aka Algieba).
Missing 'Ice Arches' Contributed to 2007 Arctic Ice Loss
In 2007, the Arctic lost a massive amount of thick, multiyear sea ice, contributing to that year's record-low extent of Arctic sea ice. A new NASA-led study has found that the record loss that year was due in part to the absence of "ice arches," naturally-forming, curved ice structures that span the openings between two land points. These arches block sea ice from being pushed by winds
NASA Scientist Nadine Unger Discusses Which Sectors of the Economy Impact the Climate
Nadine Unger, a climatologist with NASA’s Goddard Institute for Space Studies in New York City, spoke with NASA's Earth Science News Team about her recent study that analyzed how different human activities impact climate. The study appeared in the Proceedings of the National Academy of Sciences in February.NASA's Earth Science News Team: Your research suggests that the climate science
Jurassic Space: Ancient Galaxies Come Together after Billions of Years
Imagine finding a living dinosaur in your backyard. Astronomers have found the astronomical equivalent of prehistoric life in our intergalactic back yard: a group of small, ancient galaxies that has waited 10 billion years to come together. These "late bloomers" are on their way to building a large elliptical galaxy.Such encounters between dwarf galaxies are normally seen billions of
3D Sun for the iPhone
Imagine holding the entire sun in the palm of your hand. Now you can. A new iPhone app developed by NASA-supported programmers delivers a live global view of the sun directly to your cell phone. Users can fly around the star, zoom in on active regions, and monitor solar activity."This is more than cool," says Dick Fisher, director of NASA's Heliophysics Division in Washington DC. "It's
Wednesday, February 17, 2010
An Unusually Smooth Surface on Saturns Calypso
Why is this moon of Saturn so smooth? This past weekend, humanity's Saturn-orbiting Cassini spacecraft passed as close to Saturn's small moon Calypso as it ever has, and imaged the small moon in unprecedented detail. Pictured above is an early return, raw, unprocessed image of the 20-km long irregularly shaped moon. Like its sister moon Telesto and the shepherd moon Pandora, Calypso has shown
NASA's Chandra Reveals Origin of Key Cosmic Explosions
New findings from NASA's Chandra X-ray Observatory have provided a major advance in understanding a type of supernova critical for studying the dark energy that astronomers think pervades the universe. The results show mergers of two dense stellar remnants are the likely cause of many of the supernovae that have been used to measure the accelerated expansion of the universe.These supernovae,
NASA's WISE Mission Releases Medley of First Images
A diverse cast of cosmic characters is showcased in the first survey images NASA released Wednesday from its Wide-field Infrared Survey Explorer, or WISE. Since WISE began its scan of the entire sky in infrared light on Jan. 14, the space telescope has beamed back more than a quarter of a million raw, infrared images. Four new, processed pictures illustrate a sampling of the mission's
President Obama Calls Station, Shuttle Crews
The 11 astronauts aboard the International Space Station and Space Shuttle Endeavour chatted with President Barack Obama Wednesday at 5:14 p.m. EST -- along with Maryland Democratic Congressional member Dutch Ruppersberger and 12 middle school students from Michigan, Florida, North Carolina and Nebraska. Calling from the Roosevelt Room in the White House, the President congratulated the two
Lighting the Way Home
While space shuttle Endeavour's six-member crew prepares for a night landing at NASA's Kennedy Space Center, the Shuttle Landing Facility, or SLF, will be ready to light the way home.Gregory Bordeaux, the electrical power production supervisor with InDyne Inc., at Cape Canaveral Air Force Station, is looking forward to witnessing his first night landing from a unique vantage point.Bordeaux
Tuesday, February 16, 2010
Dark Shuttle Approaching
What's that approaching? Astronauts on board the International Space Station first saw it far in the distance. Soon it enlarged to become a dark silhouette. As it came even closer, the silhouette appeared to be a spaceship. Finally, at just past 11 pm (CST) last Tuesday, the object, revealed to be the Space Shuttle Endeavor, docked as expected with the Earth-orbiting space station. Pictured above
NASA Finds Warmer Ocean Speeding Greenland Glacier Melt
Glaciers in west Greenland are melting 100 times faster at their end points beneath the ocean than they are at their surfaces, according to a new NASA/university study published online Feb. 14 in Nature Geoscience. The results suggest this undersea melting caused by warmer ocean waters is playing an important, if not dominant, role in the current evolution of Greenland's glaciers, a factor
NASA's Fermi Closes on Source of Cosmic Rays
New images from NASA's Fermi Gamma-ray Space Telescope show where supernova remnants emit radiation a billion times more energetic than visible light. The images bring astronomers a step closer to understanding the source of some of the universe's most energetic particles -- cosmic rays.Cosmic rays consist mainly of protons that move through space at nearly the speed of light. In their
Get Set for a Possible Glimpse of an Asteroid
The most prominent asteroid in the sky is currently yours for the perusing with binoculars -- and perhaps even the naked eye. Tomorrow night, Wednesday, Feb. 17, Vesta, the second most massive object in the asteroid belt, reaches what astronomers like to call "opposition." An asteroid (or planet or comet) is said to be "in opposition" when it is opposite to the sun as seen from Earth. In
Cassini Shoots New Close-Ups of Death Star-like Moon
Blazing through its closest pass of the Saturnian moon Mimas on Feb. 13, Cassini sent back striking close-ups of the moon likened to the Death Star from "Star Wars" and the enormous crater scarring its surface. The flyby also yielded solid data on the moon's thermal signature and surface composition. Some of the raw, unprocessed images sent back from the flyby show the bright, steep slopes
Space Rocks Moon and Mt. Everest Rocks Find a Home in Orbit
Moon rocks, collected during the historic Apollo 11 mission, will find a new residence aboard the International Space Station alongside a piece of Mt. Everest.On May 20, 2009, during his second attempt to reach the highest point on Earth’s continental crust, former NASA astronaut Scott Parazynski successfully carried the moon rocks with him to the summit of Mt. Everest. Part of the Himalaya
International Space Station Media focus
Media focus may currently be centred on the space shuttle’s latest supply run to the International Space Station (ISS), but NASA’s important module-delivery mission isn’t the only stargazing poker the U.S. space administration has in the fire this week. More pointedly, Thursday morning saw the sky over Florida illuminated once again as NASA successfully launched its Solar Dynamics Observatory (
Monday, February 15, 2010
Cassini Spacecraft Crosses Saturn's Ring Plane
If this is Saturn, where are the rings? When Saturn's "appendages" disappeared in 1612, Galileo did not understand why. Later that century, it became understood that Saturn's unusual protrusions were rings and that when the Earth crosses the ring plane, the edge-on rings will appear to disappear. This is because Saturn's rings are confined to a plane many times thinner, in proportion, than a
Sunday, February 14, 2010
Field of Rosette
What surrounds the florid Rosette nebula? To better picture this area of the sky, the famous flowery emission nebula on the far right has been captured recently in a deep and dramatic wide field image that features several other sky highlights. Designated NGC 2237, the center of the Rosette nebula is populated by the bright blue stars of open cluster NGC 2244, whose winds and energetic light are
Saturday, February 13, 2010
Waterway to Orbit
The 32nd shuttle mission to the International Space Station, STS-130, left planet Earth on February 8. Its early morning launch to orbit from Kennedy Space Center's pad 39A followed the long, graceful, eastward arc seen in this 2 minute time exposure. Well composed, the dramatic picture also shows the arc's watery reflection from the Intracoastal Waterway Bridge, in Ponte Vedra, Florida, about
Friday, February 12, 2010
Teide Sky Trails
The snow capped Teide volcano is reflected in a pool of water in this nearly symmetric night sky view from the Canary Island Tenerife. Bright north star Polaris stands above the peak in an exposure that also captures the brilliant trail of a polar orbiting Iridium satellite. Of course, with the camera fixed to a tripod, the stars themselves produce concentric trails in long exposures, a
Thursday, February 11, 2010
Star Cluster M34
This pretty, open cluster of stars, M34, is about the size of the Full Moon on the sky. Easy to appreciate in small telescopes, it lies some 1,800 light-years away in the constellation Perseus. At that distance, M34 physically spans about 15 light-years. Formed at the same time from the same cloud of dust and gas, all the stars of M34 are about 200 million years young. But like any open star
Mission That Mapped Earth Marks 10th Anniversary
On Feb. 11, 2000, two radar antennas built by JPL launched aboard Space Shuttle Endeavour on an 11-day mission to create the first-ever near-global high-resolution database of Earth's topography. The international Shuttle Radar Topography Mission collected topographic data over nearly 80 percent of Earth's land surfaces, revealing for the first time large, detailed swaths of Earth's
WISE Spies a Comet with its Powerful Infrared Eye
NASA's Wide-field Infrared Survey Explorer, or WISE, has discovered its first comet, one of many the mission is expected to find among millions of other objects during its ongoing survey of the whole sky in infrared light. Officially named "P/2010 B2 (WISE)," but known simply as WISE, the comet is a dusty mass of ice more than 2 kilometers (1.2 miles) in diameter. It probably formed
Layers Piled in a Mars Crater Record a History of Changes
Near the center of a Martian crater about the size of Connecticut, hundreds of exposed rock layers form a mound as tall as the Rockies and reveal a record of major environmental changes on Mars billions of years ago. The history told by this tall parfait of layers inside Gale Crater matches what has been proposed in recent years as the dominant planet-wide pattern for early Mars, according
Cassini Set to Do Retinal Scan of Saturnian Eyeball
NASA's Cassini spacecraft will make its closest examination yet of Mimas, an eyeball-shaped moon of Saturn that has also been likened to the Death Star of "Star Wars." The spacecraft will be returning the highest-resolution images yet of this battered satellite. Mimas bears the mark of a violent, giant impact from the past - the 140-kilometer-wide (88-mile-wide) Herschel Crater - and
Wednesday, February 10, 2010
Sakurajima Volcano with Lightning
Why does a volcanic eruption sometimes create lightning? Pictured above, the Sakurajima volcano in southern Japan was caught erupting early last month. Magma bubbles so hot they glow shoot away as liquid rock bursts through the Earth's surface from below. The above image is particularly notable, however, for the lightning bolts caught near the volcano's summit. Why lightning occurs even in common
Tuesday, February 9, 2010
Night Launch of the Space Shuttle Endeavour
Sometimes, the space shuttle launches at night. Pictured above, the space shuttle Endeavour lifted off in yesterday's early morning hours from Launch Pad 39A in Kennedy Space Center, Florida, USA, bound for the International Space Station (ISS). A night launch, useful for reaching the space station easily during some times of the year, frequently creates vivid launch imagery. The shuttle, as
Spitzer Goes to the Olympics
Artwork inspired by NASA's Spitzer Space Telescope is making an appearance at this year's Winter Olympics in Vancouver, British Columbia. No, it's not battling other telescopes for the "gold," but its observations are now on display as part of the Vancouver 2010 Cultural Olympiad Festival. The Spitzer art project, called "We are Stardust," was created by George Legrady, a professor at the
Astronaut's Home Away from Home
A team of flight crew support specialists is looking forward to cheering and waving as space shuttle Endeavour's STS-130 crew members exit the Operations and Checkout Building, board the Astrovan and head to Launch Complex 39 at NASA's Kennedy Space Center.Later, many of them will watch as Endeavour lifts off from pad 39A on Feb. 7 at 4:39 a.m. EST. The team's thoughts and good wishes will go
Monday, February 8, 2010
A Sun Halo Over Cambodia
Have you ever seen a halo around the Sun? This fairly common sight occurs when high thin clouds containing millions of tiny ice crystals cover much of the sky. Each ice crystal acts like a miniature lens. Because most of the crystals have a similar elongated hexagonal shape, light entering one crystal face and exiting through the opposing face refracts 22 degrees, which corresponds to the radius
The Puffin: A Passion for Personal Flight
Meet the Puffin. It's an airplane concept conjured up by the mind of aerospace engineer Mark Moore. The unusual looking, vertical take-off and landing tailsitter is only an idea, but you'd never know that from the attention the Puffin has gotten on the Internet.Moore came up with the design for the electric powered, 12-foot (3.7 m) long, 14.5-foot (4.4 m) wingspan personal air vehicle as part
NASA Helps Launch Bold New Era of Open Government
On Saturday, February 6, 2010, the National Aeronautics and Space Administration launched its Open Government Webpage at:http://www.nasa.gov/openIn line with the Directive, the NASA Open Government Webpage serves as a portal to agency activities related to the Open Government Directive.The portal provides an interface for users to get the latest news as it relates to open government at NASA;
Sunday, February 7, 2010
The Einstein Cross Gravitational Lens
Most galaxies have a single nucleus -- does this galaxy have four? The strange answer leads astronomers to conclude that the nucleus of the surrounding galaxy is not even visible in this image. The central cloverleaf is rather light emitted from a background quasar. The gravitational field of the visible foreground galaxy breaks light from this distant quasar into four distinct images. The quasar
Endeavour to Deliver a Room With a View
The International Space Station has been moving steadily closer to completion for the past several years. But what house is complete without a utility room, a gym and a picture window?During the STS-130 mission, space shuttle Endeavour will deliver the Tranquility node and its cupola, a dome-shaped extension from Tranquility made up of seven windows. They will be the last major U.S. modules
Saturday, February 6, 2010
Hong Kong Sky
This remarkable scene combines multiple exposures recorded on the evening of January 18th from a waterside perspective in Hong Kong, China. It follows a young crescent Moon, with brilliant planet Jupiter to its left, as they set together in the western sky. Their two luminous trails are faintly paralleled by trails of background stars. But easier to pick out are the short, bright airplane
Friday, February 5, 2010
Dust Storm on Mars
It's spring for the northern hemisphere of Mars and spring on Mars usually means dust storms. So the dramatic brown swath of dust (top) marking the otherwise white north polar cap in this picture of the Red Planet is not really surprising. Taking advantage of the good views of Mars currently possible near opposition and its closest approach to planet Earth in 2010, this sharp image shows the
Thursday, February 4, 2010
New Hubble Maps of Pluto Show Surface Changes
NASA today released the most detailed set of images ever taken of the distant dwarf planet Pluto. The images taken by NASA's Hubble Space Telescope show an icy and dark molasses-colored, mottled world that is undergoing seasonal changes in its surface color and brightness. Pluto has become significantly redder, while its illuminated northern hemisphere is getting brighter. These changes
Stardust in Perseus
This cosmic expanse of dust, gas, and stars covers close to 3 degrees on the sky in the heroic constellation Perseus. Right of center in the gorgeous skyscape is the dusty blue reflection nebula NGC 1333, about 1,000 light-years away. At that estimated distance, the field of view is about 50 light-years across. Next to NGC 1333 is the reddish glow of shocked hydrogen gas created by energetic
Progress 36 Docks to Station
The ISS Progress 36 unpiloted spacecraft docked to the aft port of the Zvezda service module of the International Space Station on Thursday, Feb. 4 at 11:26 p.m. EST using the automated Kurs docking system. The new resupply ship brings to the orbiting laboratory 1,940 pounds of propellant, 106 pounds of oxygen and air, 926 pounds of water and 2,683 pounds of spare parts and supplies for
A Little Telescope Goes a Long Way
NASA astronomers have successfully demonstrated that a David of a telescope can tackle Goliath-size questions in the quest to study Earth-like planets around other stars. Their work, reported today in the journal Nature, provides a new tool for ground-based observatories, promising to accelerate by years the search for prebiotic, or life-related, molecules on planets orbiting stars beyond our
NASA Extends Cassini's Tour of Saturn
NASA will extend the international Cassini-Huygens mission to explore Saturn and its moons to 2017. The agency's fiscal year 2011 budget provides a $60 million per year extension for continued study of the ringed planet."This is a mission that never stops providing us surprising scientific results and showing us eye popping new vistas," said Jim Green, director of NASA's planetary science
NASA Extends Safety and Mission Assurance Contract at Marshall Space Flight Center in Alabama
NASA has exercised a second one-year option with Bastion Technologies Inc. of Houston for continued services in support of the Safety and Mission Assurance Directorate at NASA's Marshall Space Flight Center in Huntsville, Ala. The extension runs through Jan. 31, 2011.The contract is a cost plus award fee with award term arrangements. The current potential value of the contract, including this $36
Wednesday, February 3, 2010
NASA, GM Take Giant Leap in Robotic Technology
Robonaut is evolving. NASA and General Motors are working together to accelerate development of the next generation of robots and related technologies for use in the automotive and aerospace industries. Engineers and scientists from NASA and GM worked together through a Space Act Agreement at the agency's Johnson Space Center in Houston to build a new humanoid robot capable of working side
P/2010 A2: Unusual Asteroid Tail Implies Powerful Collision
What is this strange object? First discovered on ground based LINEAR images on January 6, the object appeared unusual enough to investigate further with the Hubble Space Telescope last week. Pictured above, what Hubble saw indicates that P/2010 A2 is unlike any object ever seen before. At first glance, the object appears to have the tail of a comet. Close inspection, however, shows a
Mystery of the Fading Star
sing NASA's Spitzer Space Telescope, astronomers have found a likely solution to a centuries-old riddle of the night sky.Every 27 years, a bright star called Epsilon Aurigae fades over period of two years, then brightens. Although amateur and professional astronomers have observed the system extensively, the nature of both the bright star and the companion object that periodically eclipses it
Straight Arrow - Wayne
Last Sunday I got to sit with a respected retired NASA executive who just happens to be a Canadian transplant to the steamy gulf coast. After the service was over we had a chat about his early experience with the Avro Arrow. His brief assessment: “Devastating at the time; but it was the best thing that ever happened to me personally. It led to a marvelous career.” That is something to
Solar Dynamics Observatory Set For Launch
The Solar Dynamics Observatory, or SDO, is set to launch from Florida no earlier than 10:30 a.m. EST on Feb. 9, on an unprecedented mission to study the sun and its dynamic behavior.Onboard telescopes will scrutinize sunspots and solar flares using more pixels and colors than any other observatory in the history of solar physics. And SDO will reveal the sun’s hidden secrets in a prodigious rush
Tuesday, February 2, 2010
Mars and a Colorful Lunar Fog Bow
Even from the top of a volcanic crater, this vista was unusual. For one reason, Mars was dazzlingly bright two weeks ago, when this picture was taken, as it was nearing its brightest time of the entire year. Mars, on the far upper left, is the brightest object in the above picture. The brightness of the red planet peaked last week near when Mars reached opposition, the time when Earth and
ISS Progress 36 Launches to Space Station
A new Progress cargo carrier launched from the Baikonur Cosmodrome in Kazakhstan on Tuesday at 10:45 p.m. EST (9:45 a.m. Wednesday, Baikonur time). The ISS Progress 36 unpiloted spacecraft brings to the International Space Station 1,940 pounds of propellant, 106 pounds of oxygen and air, 926 pounds of water and 2,683 pounds of spare parts and supplies. On Thursday shortly before 11:30 p.m.,
An Infrared View of the Galaxy
This composite color infrared image of the center of our Milky Way galaxy reveals a new population of massive stars and new details in complex structures in the hot ionized gas swirling around the central 300 light-years. This sweeping panorama is the sharpest infrared picture ever made of the Galactic core and offers a laboratory for how massive stars form and influence their environment in the
Suspected Asteroid Collision Leaves Odd X-Pattern of Trailing Debris
NASA's Hubble Space Telescope has observed a mysterious X-shaped debris pattern and trailing streamers of dust that suggest a head-on collision between two asteroids. Astronomers have long thought the asteroid belt is being ground down through collisions, but such a smashup has never been seen before.Asteroid collisions are energetic, with an average impact speed of more than 11,000 miles per
A New Era of Innovation and Discovery
NASA enters a new era through commercial partnerships and cutting-edge technology research designed to enable us to explore new worlds and increase our understanding of the Earth and our universe.› FY 2011 Budget Overview (387 Kb PDF)
Monday, February 1, 2010
NASA Announces Tuesday News Teleconferences with Directorate Leaders
NASA Administrator Charles Bolden announced the administration's fiscal year 2011 budget request Monday by calling for change and a new era of innovation in America's approach to science and space exploration. On Tuesday, Feb. 2, the associate administrators of the mission directorates will hold teleconferences to discuss the budget's impact on their specific areas. The teleconference schedule is
NASA Announces News Telecon To Discuss Hubble Images Of Pluto
NASA will hold a news media telecon at 1 p.m. EST on Thursday, Feb. 4, to discuss the latest Hubble images of the distant dwarf planet Pluto. These detailed images will help astronomers better interpret more than three decades of Pluto observations from other telescopes.The panelists are: - Marc Buie, scientist, Southwest Research Institute, Boulder, Colo.- Mike Brown, professor of
Shepherd Moon Prometheus from Cassini
Another moon of Saturn has been imaged in detail by the Cassini spacecraft. Orbiting Saturn since 2004, the robotic Cassini got its closest look yet at Saturn's small moon Prometheus last week. Visible above in an unprocessed image from 36,000 kilometers away, Prometheus' 100-km long surface was revealed to have an interesting system of bulges, ridges, and craters. These features, together
M51 Hubble Remix
The 51st entry in Charles Messier's famous catalog is perhaps the original spiral nebula--a large galaxy with a well defined spiral structure also cataloged as NGC 5194. Over 60,000 light-years across, M51's spiral arms and dust lanes clearly sweep in front of its companion galaxy, NGC 5195. Image data from the Hubble's Advanced Camera for Surveys was reprocessed to produce this alternative
NASA Radar Captures its First Haiti Image
JPL’s Uninhabited Aerial Vehicle Synthetic Aperture Radar (UAVSAR) captured this false-color composite image of the city of Port-au-Prince, Haiti, and the surrounding region on Jan. 27, 2010. Port-au-Prince is visible near the center of the image. The large dark line running east-west near the city is the main airport. UAVSAR left NASA’s Dryden Flight Research Center in Edwards, Calif., Jan. 25,
The Fiscal Year 2011 Budget
The Fiscal Year 2011 BudgetNASA enters this new era through new commercial partnerships and cutting-edge technology research designed to spark American innovation and enable us to explore new worlds, develop more innovative technologies, foster new industries, and increase our understanding of the Earth and our universe. NASA will pursue a more affordable and sustainable approach to spaceflight
Sunday, January 31, 2010
The Mysterious Voynich Manuscript
The ancient text has no known title, no known author, and is written in no known language: what does it say and why does it have many astronomy illustrations? The mysterious book was once bought by an emperor, forgotten on a library shelf, sold for thousands of dollars, and later donated to Yale. Possibly written in the 15th century, the over 200-page volume is known most recently as the
Saturday, January 30, 2010
Messier 88
Charles Messier described the 88th entry in his 18th century catalog of Nebulae and Star Clusters as a spiral nebula without stars. Of course the gorgeous M88 is now understood to be a galaxy full of stars, gas, and dust, not unlike our own Milky Way. In fact, M88 is one of the brightest galaxies in the Virgo Galaxy Cluster some 50 million light-years away. M88's beautiful spiral arms are easy
Bayfordbury Open Evenings February and March
Visit a working astronomical observatory and see the telescopes. Weather permitting there will be the opportunity to view interesting objects in the sky both looking through the telescopes and also using CCD imaging cameras.(If the weather is bad, we will show you some pictures we took earlier!). In addition to the observatory there will be a number of other activities that you may choose in the
Ice on Galway Docks
The photo above showing ice at the docks in Galway, Ireland was captured in the early afternoon of January 9, 2010. The Atlantic coast of Ireland hasn't experienced seawater freezing in its dock area since the early 1980s. The freezing temperature of seawater varies according to the salinity of the water: the greater the concentration of salts, the lower the initial freezing temperature. Seawater
Let There be Light on Earth
An early morning sun illuminated the light rain over Nevada, Missouri, on May 14, 2009, spraying rays across the sky. Photographer Tommy Hornbeck captured what some viewers may believe to be virga, rain that evaporates before reaching the surface. However, Jim Foster, a hydrologist at NASA’s Goddard Space Flight Center, confirmed with Hornbeck that the rain did indeed dampen the ground and the
ESMD Highlight
Electronic Nose (ENose)Challenge: Provide rapid, automated air-quality monitoring to prevent astronaut exposure to dangerous substances.Research Objective: Demonstrate six months of experimental operation of the Electronic Nose (ENose) on the International Space Station (ISS).Mission Description: The third generation ENose, developed by the Exploration Technology Development Program, is designed
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