Comet Hartley 2 can be seen in glorious detail in this image from NASA's EPOXI mission. It was taken as…
This close-up view of comet Hartley 2 was taken at 7:01 a.m. PDT (10:01 a.m. EDT), after NASA's EPOXI mission…
This close-up view of comet Hartley 2 was taken as NASA's EPOXI mission approached the comet at 6:58 a.m. PDT…
At NASA's Kennedy Space Center in Florida, space shuttle Discovery waits on Launch Pad 39A on Nov. 5, 2010 for…
From 220 miles above Earth, the Expedition 25 crew aboard the International Space Station shot this night time image of…
The primary science objective of the TIMED mission is to understand the energy transfer into and out of the Mesosphere…
Artist's concept of the TIMED (Thermosphere Ionosphere Mesosphere Energetics and Dynamics) spacecraft in orbit above the Earth, with light from…
In the clean room at Kennedy Space Center's Payload Hazardous Servicing Facility, technicians prepare the New Horizons spacecraft for a…
With the sun on the horizon, NASA's DC-8 flies over Antarctica's Weddell Sea on Oct. 28 during a Fall 2010…
NASA Dryden Flight Research Center pilots Troy Asher (left) and Bill Brockett (right) flew NASA's DC-8 research aircraft during NASA's…
