Many comets from other solar systems
Posted: Fri, Jun 11 7:14 AM ET (1114 GMT)
The vast majority of comets in our solar system actually formed around other stars and were later captured by the Sun, scientists reported Thursday. Computer...

KSLV launch fails
Posted: Thu, Jun 10 2:05 PM ET (1805 GMT)
The second attempt by South Korea to launch a satellite into orbit failed Thursday when the rocket apparently exploded in flight. The KSLV-1 rocket (...

NASA planning to cut back Constellation work
Posted: Thu, Jun 10 1:50 PM ET (1750 GMT)
Citing a shortfall of nearly $1 billion needed to cover potential contract termination liabilities, NASA is planning to slow down work on most elements of...

South Korean launch postponed
Posted: Wed, Jun 9 7:55 AM ET (1155 GMT)
The launch of a South Korean rocket was scrubbed Wednesday because of a problem at the launch pad. The KSLV-1 rocket, also known as...

Japanese asteroid probe returning to Earth
Posted: Tue, Jun 8 7:01 AM ET (1101 GMT)
A Japanese spacecraft that overcame numerous technical problems to study an asteroid is on final approach to return to Earth this weekend. Hayabusa adjusted its...

South Korea prepares for new launch attempt
Posted: Tue, Jun 8 6:47 AM ET (1047 GMT)
South Korea plans this week to make its second attempt to launch a satellite with its own launch vehicle. The KSLV-1, also known as...

SpaceX declares Falcon 9 launch a success
Posted: Fri, Jun 4 4:36 PM ET (2036 GMT)
Falcon 9, a new launch vehicle developed by entrepreneurial space company SpaceX, successfully lifted off Friday afternoon and placed a test payload into orbit. The...

Mars rocks evidence of past habitable conditions
Posted: Fri, Jun 4 7:48 AM ET (1148 GMT)
Analysis of rocks studies by one of NASA's Mars rovers confirms that the planet was once warmer and wetter, and thus more hospitable to...

Proton launches Arabsat satellite
Posted: Fri, Jun 4 7:37 AM ET (1137 GMT)
A Proton rocket successfully placed into orbit a new communications satellite for Arabsat on Friday. The Proton M lifted off from the Baikonur Cosmodrome at...

Falcon 9 set for inaugural launch
Posted: Thu, Jun 3 8:43 PM ET (0043 GMT)
SpaceX officials said Thursday everything is ready for Friday's planned test launch of the first Falcon 9 rocket. In a teleconference Thursday officials said...