Astronaut Michael E. Fossum, an STS-121 mission specialist, participates in the mission’s second extravehicular activity. During the more than six-hour…
Two NASA employees stand in front of Intelsat IV in its sound-absorbing, or anechoic, chamber in this 1972 photo. Intelsat,…
NASA’s Mars Global Surveyor spacecraft has snapped its 200,000th image of the red planet since entering orbit in September 1997.…
Researchers at NASA’s Langley Research Center conduct studies in 1964 to determine the types of difficulties astronauts might encounter on…
This computer generated image depicts a view of Earth as seen from the surface of the asteroid Toutatis on Nov.…
This view of Tibet’s Brahmaputra River was taken on Oct. 13, 2000, by the Expedition 3 crew. This Asian river…
The Cassini spacecraft captured this spectacular view of a landslide on Saturn’s moon, Iapetus. Landslides are common geological phenomena on…
STS-121 mission specialist Piers J. Sellers, wearing a training version of the space suit used for extravehicular activity (EVA), participates…
These are some of the first pictures returned by the European Space Agency’s Huygens probe during its successful descent and…
Astronaut Charles Conrad Jr., commander of the first manned Skylab mission, goes through a checklist of experiment activity during Skylab…
