Cassini detects tenuous atmosphere around Saturn moon
Posted: Tue, Mar 6 6:50 AM ET (1150 GMT)
Scientists have found that an icy moon of Saturn has a very tenuous atmosphere of molecular oxygen. Instruments on NASA's Cassini spacecraft detected the...

ESA delays next ATV launch
Posted: Sat, Mar 3 11:51 AM ET (1651 GMT)
The European Space Agency announced Friday that it has delayed the upcoming launch of an ISS cargo spacecraft in order to perform additional checks on...

Next Falcon 9 passes dress rehearsal
Posted: Fri, Mar 2 10:52 AM ET (1552 GMT)
A SpaceX rocket scheduled to launch a cargo demonstration mission to the ISS this spring successfully completed a dress rehearsal of its launch on Thursday....

Canada extends support for ISS
Posted: Thu, Mar 1 8:54 AM ET (1354 GMT)
The Canadian government announced Wednesday it has formally agreed to continue its participation in the International Space Station beyond 2015, making it the last of...

LightSquared CEO steps down
Posted: Wed, Feb 29 8:45 AM ET (1345 GMT)
The CEO of a controversial communications company that sought to develop a hybrid satellite-terrestrial network resigned on Tuesday. Sanjiv Ahuja resigned as CEO of...

NASA establishes Mars planning group
Posted: Tue, Feb 28 8:49 AM ET (1349 GMT)
NASA announced Monday it was creating a new planning group to study potential future robotic Mars missions in the wake of the administration's decision...

Atlas launches military communications satellite
Posted: Sat, Feb 25 10:19 AM ET (1519 GMT)
After two weather-related delays last week, an Atlas 5 rocket successfully launched the first in a new generation of military communications satellites on Friday....

China launches navigation satellite
Posted: Sat, Feb 25 10:05 AM ET (1505 GMT)
A Long March rocket put the latest in a series of Chinese navigation satellites into orbit Friday. The Long March 3C rocket lifted off from...

Orbital revises Antares launch schedule
Posted: Thu, Feb 23 7:24 AM ET (1224 GMT)
Executives of Orbital Sciences Corporation confirmed this week delays in the first launches of its Antares rocket and Cygnus cargo spacecraft, pushing back the inaugural...

Astronomers find watery exoplanet
Posted: Wed, Feb 22 7:44 AM ET (1244 GMT)
Astronomers aalyzing Hubble observations have concluded one known extrasolar planet has a thick atmosphere of water vapor and likely far more water than the Earth....