Spacewalkers install ammonia tank on ISS
Posted: Sun, Apr 11 3:12 PM ET (1912 GMT)
Two spacewalkers struggled with a bolt but were eventually able to install a new ammonia tank on the exterior of the International Space Station early...

Ariane launch scrubbed
Posted: Sat, Apr 10 10:36 AM ET (1436 GMT)
The launch of two European satellites on an Ariane 5 was postponed again Friday night because of a vehicle pressurization problem. The Ariane 5 ECA...

Astronauts complete first STS-131 spacewalk; mission extended
Posted: Sat, Apr 10 10:28 AM ET (1428 GMT)
Two astronauts carried out the first of three scheduled spacewalks for the STS-131 mission early Friday. Rick Mastracchio and Clayton Anderson spent six hours...

NASA makes work assignments for new exploration plan
Posted: Fri, Apr 9 11:16 AM ET (1516 GMT)
NASA announced Thursday a number of new assignments for its various field centers to carry out elements of the agency's new exploration effort, giving...

Dnepr launches CryoSat-2
Posted: Fri, Apr 9 11:01 AM ET (1501 GMT)
A Dnepr rocket successfully launched a European earth sciences satellite Thursday, replacing a satellite lost in a launch failure several years ago. The Dnepr rocket...

Shuttle docks with ISS
Posted: Wed, Apr 7 8:07 AM ET (1207 GMT)
The space shuttle Discovery smoothly docked with the International Space Station early Wednesday despite the failure of an antenna on the shuttle that is used...

Discovery launches on mission to ISS
Posted: Mon, Apr 5 8:09 AM ET (1209 GMT)
The space shuttle Discovery lifted off on schedule Monday morning on a mission to deliver cargo to the International Space Station. Discovery launched at 6:...

Soyuz docks with ISS
Posted: Sun, Apr 4 10:37 AM ET (1437 GMT)
A Soyuz spacecraft carrying three new crewmembers for the International Space Station docked with the orbiting outpost early Sunday. The Soyuz TMA-18 spacecraft, launched...

Countdown underway for STS-131 launch
Posted: Sat, Apr 3 7:17 AM ET (1117 GMT)
The countdown started early Friday for Monday morning's launch of the space shuttle Discovery on a mission to the International Space Station. The countdown...

Soyuz launched to ISS
Posted: Fri, Apr 2 7:45 AM ET (1145 GMT)
A Soyuz spacecraft carrying three new crewmembers for the International Space Station lifted off early Friday. The Soyuz rocket launched at 12:04 am EDT (...