Astronauts complete final STS-123 EVA
Posted: Sun, Mar 23 10:22 AM ET (1422 GMT)
Two astronauts spent six hours outside the International Space Station Saturday night, completing a final set of tasks planned for the STS-123 mission. Robert...

Titan may have underground ocean
Posted: Sat, Mar 22 10:32 AM ET (1432 GMT)
Saturn's largest moon, Titan, may have an ocean of water and ammonia under its surface, planetary scientists reported this week. The evidence for the...

Martian salt deposits could be clue in search for life
Posted: Sat, Mar 22 10:20 AM ET (1420 GMT)
Salt deposits discovered on the surface of Mars in data from a NASA mission could help scientists identify prime locations to look for evidence of...

Astronauts test tile repair techniques on EVA
Posted: Fri, Mar 21 9:47 AM ET (1347 GMT)
Two astronauts successfully tested tools that could be used to repair damage to the shuttle's thermal protection system during a six-and-a-half-...

Canada delays decision on MDA sale
Posted: Fri, Mar 21 9:32 AM ET (1332 GMT)
The Canadian government on Thursday extended the deadline for its decision on approving the sale of the space unit of a Canadian company to an...

Zenit-3SL launches HDTV satellite
Posted: Thu, Mar 20 7:54 AM ET (1154 GMT)
A Sea Launch rocket success launched a new satellite designed to provide HDTV programming to customers in the US. The Zenit-3SL lifted off from...

Methane detected on exoplanet
Posted: Thu, Mar 20 7:41 AM ET (1141 GMT)
Astronomers have detected evidence of methane in the atmosphere of an extrasolar planet, the first organic molecule discovered on a planet outside our solar system....

Arthur C. Clarke passes away
Posted: Wed, Mar 19 7:32 AM ET (1132 GMT)
Arthur C. Clarke, the legendary science fiction author and inventor of the concept of the geosynchronous communications satellite, passed away Wednesday in Sri Lanka at...

Dextre moved into position on ISS
Posted: Wed, Mar 19 7:10 AM ET (1110 GMT)
The crews of the shuttle Endeavour and the International Space Station moved the newly-assembled Dextre manipulator to its new home on the ISS Tuesday...

Spacewalkers complete outfitting of Dextre
Posted: Tue, Mar 18 8:42 AM ET (1242 GMT)
Spacewalking astronauts spent nearly seven hours outside the ISS late Monday night, finishing work to prepare the Dextre robotic manipulator for work on the station....