After a 15-year wait, equinox arrived at Saturn and Cassini was there to witness the spectacle of light and shadow.
The Expedition 20 crew grapples the Japanese H-II Transfer Vehicle using the station’s robotic arm.
An exciting look at the Lunar Reconnaissance Orbiter's instrument, LOLA.
Shuttle Discovery returns safely to Earth at Edwards Air Force Base in California.
NASA and industry partners lit up the Utah sky on Sept. 10, 2009, with the initial full scale, full-duration test firing of the first motor for the Ares I rocket.
Space shuttle Discovery flies around the International Space Station after undocking.
Spacewalkers Danny Olivas and Christer Fuglesang work outside the International Space Station during the third and final STS-128 spacewalk.
Spacewalkers Danny Olivas and Christer Fuglesang work outside the International Space Station during the second of three STS-128 spacewalks.
Cameras mounted on space shuttle Discovery's twin solid rocket boosters provide a unique view of the trip to orbit.
Hurricane Jimena in the Pacific Ocean as seen from the International Space Station.