This long-exposure image from NASA’s Hubble Space Telescope of massive galaxy cluster Abell 2744 is the deepest ever made of…
Kepler Planet Candidates, January 2014
An Orbital Sciences Corporation Antares rocket is seen as it is rolled out to launch Pad-0A at NASA's Wallops Flight…
An Orbital Sciences Corporation Antares rocket is seen as it is rolled out to launch Pad-0A at NASA's Wallops Flight…
An Orbital Sciences Corporation Antares rocket is seen as it is rolled out to Launch Pad-0A at NASA's Wallops Flight…
An Orbital Sciences Corporation Antares rocket is seen as it is rolled out to launch Pad-0A at NASA's Wallops Flight…
A nighttime view of Salt Lake City, Utah.
NASA astronaut Mike Hopkins, Expedition 38 flight engineer, performs in-flight maintenance on combustion research hardware.
NASA astronaut Rick Mastracchio, Expedition 38 flight engineer, performs troubleshooting on the Biorack centrifuge for NanoRacks.
