Astronaut Rick Mastracchio works on the truss section of the International Space Station during the second spacewalk of the STS-131…
NASA Administrator Charles Bolden and U.S. Environmental Protection Agency Administrator Lisa P. Jackson signed a Memorandum of Agreement today to…
Still from video showing NASA's DC-8 taking off for a science flight from Thule, Greenland. The first half of the…
This new Hubble photo is but a small portion of one of the largest seen star-birth regions in the galaxy,…
High above the African continent, tall, dense cumulonimbus clouds, meaning 'column rain' in Latin, are the result of atmospheric instability.…
Images taken by SDO immediately after the AIA CCD cameras cooled on March 30, 2010. This image shows several flares…
As the shuttle and the space station began their post-undocking relative separation, Expedition 23 flight engineer Soichi Noguchi photographed the…
Solar Dynamics Observatory (SDO) First Light composite image from March 30, 2010 including solar prominence.
The Lena River, some 2,800 miles long, is the easternmost of the three great Siberian rivers that flow into the…
This other worldly landscape is actually Dagze Co, one of many inland lakes in Tibet. In glacial times, the region…
