Astronaut Dave Williams, representing the Canadian Space Agency, participates in the last of four STS-118 spacewalks.
NASA began development of new communication satellites in 1960, based on the hypothesis that geosynchronous satellites, which orbit Earth 22,300…
Even bubbles are more interesting in space. Here, a water bubble floats freely on the International Space Station, showing an…
Anchored to the Space Shuttle Discovery’s Remote Manipulator System/Orbiter Boom Sensor System foot restraint, STS-121 mission specialist Piers J. Sellers…
The center of the Milky Way is a crowded neighborhood and not always a calm one, as seen in this…
NASA’s NEAR (Near Earth Asteroid Rendezvous) Shoemaker spacecraft landed on the surface of the 21-mile long asteroid Eros on February…
Backdropped by Earth’s horizon and the blackness of space, the International Space Station appears small as it moves away from…
This is a cropped view of the first Navcam stereo mosaic from Spirit at Gusev crater. To see the image…
NASA’s Chandra observatory captured this false-color, x-ray image of the young star cluster NGC 346. The heart-shaped cloud sits in…
Expedition 11 Flight Engineer John Phillips smiles after a successful landing in Kazakhstan on Monday, October 10. Phillips and his…
