Early Mars too salty for most life
Posted: Sun, Feb 17 6:53 AM ET (1153 GMT)
While liquid water may have existed on the Martian surface early in the planet's history, that water was too salty to support most known...

Spacewalkers complete final STS-122 EVA
Posted: Sat, Feb 16 7:02 AM ET (1202 GMT)
Two astronauts spent more than seven hours outside the International Space Station on Friday, completing the outfitting of the exterior of the new Columbus lab...

Orbital Sciences has record financial year
Posted: Sat, Feb 16 6:45 AM ET (1145 GMT)
Orbital Sciences Corporation reported record revenues and profits in 2007 on Thursday thanks to strong launch and satellite business. For the fourth quarter of 2007...

US to use missiles to destroy failed spysat
Posted: Fri, Feb 15 7:43 AM ET (1243 GMT)
The US military, at the direction of the White House, plan to use one or more missiles to destroy a failed reconnaissance satellite before it...

Astronomers find Jupiter- and Saturn-like exoplanets around distant star
Posted: Fri, Feb 15 7:28 AM ET (1228 GMT)
A collaboration of professional and amateur astronomers has discovered two exoplanets, smaller versions of Jupiter and Saturn, orbiting a distant star. Astronomers used a technique...

Report: US planning to destroy ailing spysat
Posted: Thu, Feb 14 2:04 PM ET (1904 GMT)
The US military is making plans to fire missiles at a defunct reconnaissance satellite in a decaying orbit, the AP reported Thursday. The satellite, known...

Second STS-122 EVA a success
Posted: Thu, Feb 14 6:43 AM ET (1143 GMT)
Two astronauts, including a German who had reportedly fallen ill earlier in the mission, carried out a successful spacewalk on Wednesday, replacing a nitrogen tank...

Japanese satellite launch delayed
Posted: Thu, Feb 14 6:30 AM ET (1130 GMT)
The launch of an experimental broadband communications satellite, scheduled for Friday, has been postponed because of a technical problem, Japanese officials said Wednesday. The Kizuna (...

Astronauts open up Columbus, prepare for second EVA
Posted: Wed, Feb 13 10:04 AM ET (1504 GMT)
Astronauts on the International Space Station opened up their newest module on Tuesday as two astronauts prepared for the second spacewalk of the STS-122...

Proton launches Norwegian satellite
Posted: Tue, Feb 12 6:58 AM ET (1158 GMT)
A Proton rocket launched a Norwegian communications satellite on Monday after a one-day delay. The Proton-M lifted off from the Baikonur Cosmodrome Monday...