The center of the Milky Way is a crowded neighborhood and not always a calm one, as seen in this…
NASA's Chandra observatory captured this false-color, x-ray image of the young star cluster NGC 346. The heart-shaped cloud sits in…
This is a cropped view of the first Navcam stereo mosaic from Spirit at Gusev crater. To see the image…
St. Thomas, St. John, Tortola and Virgin Gorda are the four main islands (front to back) of this east-looking view…
Expedition 11 Flight Engineer John Phillips smiles after a successful landing in Kazakhstan on Monday, October 10. Phillips and his…
Astronaut Daniel Tani, Expedition 16 flight engineer, participates in the second of five scheduled spacewalks as construction continues on the…
NASA Administrator Michael Griffin (right) and Associate Administrator for Space Operations William Gerstenmaier inspect Space Shuttle Discovery after the landing…
This view of Space Shuttle Discovery at the launch pad was taken while the STS-120 crew was at Kennedy Space…
Astronauts Patrick Forrester (left) and Steven Swanson participate in the STS-117 mission's fourth and final spacewalk. Among other tasks, Forrester…
This artist concept illustrates how a massive collision of objects perhaps as large as the planet Pluto smashed together to…