Spacewalking astronauts to attempt to repair ISS coolant leak
Posted: Sat, May 11 9:29 AM ET (1329 GMT)
NASA approved plans late Friday to have two astronauts perform an emergency spacewalk Saturday to investigate and attempt to repair a leak in the station'...

RADARSAT-1 declared lost
Posted: Sat, May 11 9:12 AM ET (1312 GMT)
A Canadian radar imaging satellite that malfunctioned over a month ago has been declared lost, the Canadian Space Agency announced this week. RADARSAT-1 suffered...

ISS suffers coolant leak
Posted: Fri, May 10 8:10 AM ET (1210 GMT)
Astronauts on the International Space Station spotted a leak of ammonia from the station's cooling system on Thursday, a problem that may ultimately require...

Water on Earth and in Moon may come from same source
Posted: Fri, May 10 7:56 AM ET (1156 GMT)
Water in the Moon's interior has the same isotopic ratios as water on the Earth, indicating that the Moon's water may have come...

SpaceX to move Grasshopper tests to Spaceport America
Posted: Thu, May 9 7:24 AM ET (1124 GMT)
SpaceX will conduct future flight tests of a reusable launch vehicle technology demonstrator at Spaceport America in New Mexico, spaceport officials announced Tuesday. SpaceX has...

Vega launches three satellites
Posted: Tue, May 7 6:36 AM ET (1036 GMT)
After a three-day delay because of weather, a European Vega rocket successfully launched three small satellites Monday night. The Vega lifted off from Kourou,...

Orbital sets date for first Cygnus mission to ISS
Posted: Tue, May 7 6:25 AM ET (1025 GMT)
Orbital Sciences Corporation announced Monday that it plans to launch its first Cygnus cargo mission to the International Space Station in August or September. The...

Winds postpone Vega launch
Posted: Sat, May 4 9:19 AM ET (1319 GMT)
High upper-level winds forced controllers to scrub Friday night's scheduled launch of Europe's Vega small launch vehicle from French Guiana. Vega was...

Zenit failure blamed on faulty hydraulic pump
Posted: Fri, May 3 7:55 AM ET (1155 GMT)
The failure of a Sea Launch Zenit-3SL rocket earlier this year has been traced back to a faulty hydraulic pump in the rocket's...

China launches communications satellite
Posted: Thu, May 2 8:33 AM ET (1233 GMT)
A Long March rocket launched a Chinese communications satellite early Thursday. The Long March 3B rocket lifted off from the Xichang Satellite Launch Center at...