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

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

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

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.

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)

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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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

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

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,

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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.

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

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

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

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.