Helium "rain" predicted for Jupiter
Posted: Wed, Mar 24 7:20 AM ET (1120 GMT)
Liquid helium precipitating out of Jupiter's upper atmosphere may explain the relative lack of neon there, scientists said this week. University of California Berkeley...

SpaceShipTwo performs first captive carry flight
Posted: Tue, Mar 23 8:06 AM ET (1206 GMT)
SpaceShipTwo, the commercial suborbital vehicle under development for Virgin Galactic, left the ground for the first time on Monday attached to its carrier aircraft. SpaceShipTwo...

Proton launches EchoStar satellite
Posted: Sun, Mar 21 11:55 AM ET (1555 GMT)
A Proton rocket successfully launched an American direct-to-home television satellite early Sunday. The Proton M lifted off from the Baikonur Cosmodrome in Kazakhstan...

New "temperate" exoplanet discovered
Posted: Sat, Mar 20 10:27 AM ET (1427 GMT)
Astronomers announced this week the discovery of a Jupiter-sized extrasolar planet in an orbit distant enough from its parent star to have relatively moderate...

Soyuz returns with ISS crew
Posted: Fri, Mar 19 7:21 AM ET (1121 GMT)
Two members of the International Space Station crew safely returned to Earth early Thursday in a Soyuz spacecraft. The Soyuz TMA-16 spacecraft landed at...

ESA releases Phobos flyby images
Posted: Wed, Mar 17 6:35 AM ET (1035 GMT)
The European Space Agency released this week some of the best images ever of the Martian moon Phobos, taken by an ESA spacecraft earlier this...

Valve problem could delay shuttle launch
Posted: Tue, Mar 16 7:02 AM ET (1102 GMT)
Shuttle engineers are investigating a valve problem on the shuttle Discovery that could delay its scheduled launch next month. The issue is with an isolator...

SpaceX tests Falcon 9 engines, wins contract
Posted: Tue, Mar 16 6:54 AM ET (1054 GMT)
SpaceX successfully performed a "hot fire" of its first Falcon 9 rocket on its Florida launchpad on Saturday, and also announced a new launch contract....

International partners agree to ISS extension
Posted: Fri, Mar 12 7:38 AM ET (1238 GMT)
Partner nations in the International Space Station project affirmed Thursday their desire to keep operating the station at least to 2020, while studying the possibility...

GeoEye selects Lockheed for next satellite
Posted: Fri, Mar 12 7:30 AM ET (1230 GMT)
Commercial remote sensing company GeoEye announced Thursday that it has awarded Lockheed Martin a contract to build its next imaging satellite in the hopes of...