Cassini flies past Titan
Posted: Wed, Dec 15 7:45 AM ET (1245 GMT)
NASA's Cassini spacecraft made its second close approach to Titan this week, encountering more atmospheric drag than expected during the flyby. Cassini made its...

Mars rovers find more water evidence
Posted: Tue, Dec 14 8:07 AM ET (1307 GMT)
The Mars rover Spirit has identified a mineral that is the latest evidence that the planet once had significant quantities of water. Spirit found the...

O'Keefe submits resignation
Posted: Mon, Dec 13 7:51 PM ET (0051 GMT)
NASA Administrator Sean O'Keefe submitted his resignation to President Bush on Monday. In a statement released late Monday afternoon NASA announced that O'Keefe...

Space telescopes spy forming solar systems
Posted: Mon, Dec 13 8:36 AM ET (1336 GMT)
Images from two NASA space telescopes have allowed astronomers to observe some of the "missing links" in the formation of solar systems. Images from Hubble,...

Delta 4 Heavy launch delayed again
Updated: Mon, Dec 13 8:21 AM ET (1321 GMT)
Originally Posted: Sun, Dec 12 3:31 PM ET (2031 GMT)
For the second straight day Sunday the launch of the first Delta 4 Heavy was scrubbed because of a technical glitch, pushing the launch back...

Reports: O'Keefe resignation imminent
Posted: Sun, Dec 12 3:23 PM ET (2023 GMT)
NASA Administrator Sean O'Keefe is expected to announce his resignation this week, perhaps on Monday, in order to take the job as chancellor of...

Italian, Canadian picked for Soyuz flight
Posted: Sun, Dec 12 8:51 AM ET (1351 GMT)
An Italian ESA astronaut will fly on a Soyuz taxi mission to the ISS next year, with a Canadian serving as his backup, space agencies...

Volcanism possible in Kuiper Belt
Posted: Sun, Dec 12 8:42 AM ET (1342 GMT)
Planetary scientists have found evidence that objects in the Kuiper Belt, the realm of icy objects beyond the orbit of Neptune, can experience a kind...

Technical glitch delays Delta 4 Heavy launch
Posted: Sat, Dec 11 6:43 PM ET (2343 GMT)
The inaugural launch of Boeing's Delta 4 Heavy booster was scrubbed Saturday because of a problem with a computer system. The Delta 4 Heavy...

Report: O'Keefe may leave NASA
Updated: Sat, Dec 11 1:00 PM ET (1800 GMT)
Originally Posted: Sat, Dec 11 9:19 AM ET (1419 GMT)
NASA Administrator Sean O'Keefe may leave the space agency in the near future, perhaps as early as next week, according to reports Saturday. Florida...