Russian cosmonaut Alexander Misurkin conducts a spacewalk.
NASA astronaut Karen Nyberg, Expedition 36 flight engineer, works with new test samples for the Advanced Colloids Experiment.
Russian cosmonaut Alexander Misurkin conducts a spacewalk.
This image shows the potentially hazardous near-Earth object 1998 KN3 as it zips past a cloud of dense gas and…
Sierra Nevada Corporation's Dream Chaser engineering test spacecraft was hoisted into the air during a captive carry test Aug. 22…
Sierra Nevada Corporation's Dream Chaser engineering test spacecraft was suspended from a cable from a large helicopter during its captive…
A Sikorsky S-64 Sky Crane helicopter operated by Erickson Air Crane lifted Sierra Nevada's Dream Chaser test spacecraft into the…
The spectacular swirling arms and central bar of the Sculptor galaxy are revealed in this new view from NASA’s Spitzer…
Massive stars can wreak havoc on their surroundings, as can be seen in this new view of the Carina nebula…
Crews unload the James Webb Space Telescope's "backplane," which was flown aboard a Lockheed C-5 airplane to NASA’s Marshall Space…
