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....

NASA shifts senior leadership positions
Posted: Wed, Feb 22 7:31 AM ET (1231 GMT)
NASA announced Tuesday that its third-in-command will take over one of the agency's field centers, while another center head moves to headquarters....

NASA spacecraft spots recent geological activity on the Moon
Posted: Tue, Feb 21 7:02 AM ET (1202 GMT)
Scientists analyzing images from a NASA spacecraft have identified features that formed relatively recently in the Moon's history. In a paper appearing in the...

China plans next human mission for this summer
Posted: Sun, Feb 19 10:41 AM ET (1541 GMT)
Chinese media reported Friday that the country's next human spaceflight is now scheduled for this summer, and will feature a docking with its Tiangong-...

Weather delays Atlas launch again
Posted: Sat, Feb 18 9:57 AM ET (1457 GMT)
The launch of a military communications satellite has been rescheduled for no earlier than Wednesday after weather conditions kept its Atlas rocket grounded for the...