Working in a Vacuum

Discovery spacewalker Danny Olivas at work during the STS-128 mission's first spacewalk. During the six-hour, 35-minute spacewalk, Olivas and astronaut Nicole Stott, removed an empty ammonia tank from the station's truss and temporarily stowed it on the station's robotic arm.Olivas and Stott also retrieved the European Technology Exposure Facility and Materials International Space Station

Leonardo

Backdropped by Earth's horizon and the blackness of space, the Leonardo Multi-Purpose Logistics Module is visible in Discovery's payload bay, as is the shuttle's vertical stabilizer, orbital maneuvering system pods, Orbiter Boom Sensor System and docking mechanism in this image shot from an aft flight deck window.For the STS-128 mission, Leonardo carried 7.5 tons of supplies to the station,

Apollo 12 and Surveyor 3

This image from LRO shows the spacecraft's first look at the Apollo 12 landing site. The Intrepid lunar module descent stage, experiment package (ALSEP) and Surveyor 3 spacecraft are all visible. Astronaut footpaths are marked with unlabeled arrows. This image is 824 meters (about 900 yards) wide. The top of the image faces North. Credit: NASA/Goddard Space Flight Center/Arizona State

Second of Three STS-128 Spacewalks Concludes

The second of three STS-128 spacewalks concluded Friday at 12:51 a.m. EDT. It lasted 6 hours, 39 minutes. The spacewalkers, Danny Olivas and Christer Fuglesang, completed their major objectives and some get-ahead tasks, including the installation of portable foot restraints on the station's truss.Image above: Astronaut Christer Fuglesang rides the station's robotic arm carrying an empty ammonia

Pollution from California Wildfires Spreads Across the United States

Beginning August 26, 2009, and continuing into September 2009, a large wildfire in the Angeles National Forest north of Los Angeles known as the Station Fire burned more than 140,000 acres through September 3. Carbon monoxide in the smoke from this large fire was lofted as high as 8.3 kilometers (27,000 feet) into the atmosphere, where it was observed by JPL's Atmospheric Infrared Sounder (AIRS)

NASA Briefings to Unveil Hubble's New Observations

NASA will hold news briefings at 11 a.m. and noon EDT Wednesday, Sept. 9, to release and discuss the first images from the newly refurbished Hubble Space Telescope. NASA Television and the agency's Web site will provide live coverage of the briefings from NASA Headquarters in Washington.Space shuttle Atlantis' STS-125 mission upgraded the telescope in May with state-of-the-art science instruments

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