Rosetta launch postponed; Ariane 5 grounded
Posted: Tue, Jan 14 2:42 PM ET (1942 GMT)
European Space Agency and Arianespace officials announced Tuesday that the launch of ESA's Rosetta comet mission has been postponed indefinitely while issues regarding the...

Astronomers discover three moons of Neptune
Posted: Mon, Jan 13 9:57 PM ET (0257 GMT)
A group of American and Canadian astronomers announced the discovery Monday of three moons orbiting the distant gas giant Neptune. The three small moons, none...

Report: Rosetta launch scheduled for January 22
Posted: Mon, Jan 13 1:54 PM ET (1854 GMT)
The European Space Agency will likely reschedule the launch of its Rosetta comet mission for January 22 or shortly thereafter, the BBC reported Monday. Scientists...

STS-107 countdown begins
Posted: Mon, Jan 13 1:46 PM ET (1846 GMT)
NASA announced Monday that it has started the countdown for Thursday's launch of the shuttle Columbia on a dedicated science mission. The countdown for...

Delta 2 launches NASA satellites
Posted: Sun, Jan 12 11:55 PM ET (0455 GMT)
A Boeing Delta 2 successfully launched two NASA science satellites Sunday evening from Vandenberg Air Force Base, California. The Delta 2 7320 lifted off at...

Star ejected from binary system
Posted: Sun, Jan 12 7:17 PM ET (0017 GMT)
A binary star system ejected a third star that had been orbiting the pair, the first time such an ejection has been observed, astronomers reported...

Ground equipment problem delays Delta launch
Posted: Sun, Jan 12 10:58 AM ET (1558 GMT)
A glitch with ground equipment scrubbed Saturday night's scheduled launch of a Delta 2 carrying two science spacecraft. The launch was scheduled to take...

ESA, Russia close to Soyuz deal
Posted: Sat, Jan 11 1:16 PM ET (1816 GMT)
The European Space Agency and Rosaviakosmos are close to an agreement that would permit Soyuz launches from Kourou, French Guiana, AFP reported Friday. The agreement,...

Scientists measure speed of gravity
Posted: Sat, Jan 11 11:15 AM ET (1615 GMT)
The first effort to measure the speed of gravity has led astronomers to conclude that gravity operates at the speed of light, as predicted by...

NASA confident Columbia will be ready for launch
Posted: Fri, Jan 10 7:40 AM ET (1240 GMT)
Shuttle managers said Thursday that they believe the space shuttle Columbia will be cleared for launch next week even though an issue with cracked bearings...