Cassini reveals compositional differences in Saturn's rings
Posted: Thu, Jul 8 7:56 AM ET (1156 GMT)
Spectroscopic data from NASA's Cassini spacecraft has shown that the composition of Saturn's extensive ring system is not uniform but varies from region...

SpaceShipOne problems corrected
Posted: Wed, Jul 7 7:43 PM ET (2343 GMT)
Two major problems experienced during last month's suborbital space flight of Scaled Composites' SpaceShipOne vehicle have been corrected, Wired News reported Wednesday. In an...

Sea Launch anomaly investigation continues
Posted: Wed, Jul 7 7:31 PM ET (2331 GMT)
Engineers are continuing to investigate a problem with the upper stage of a Sea Launch Zenit 3SL booster that placed its payload into a lower-...

Veteran cosmonaut dies
Posted: Tue, Jul 6 10:30 AM ET (1430 GMT)
Andriyan Nikolayev, the third Russian in space and veteran of two space flights, passed away Saturday at the age of 74. Nikolayev suffered a heart...

Wildfire threatens Arizona observatory
Posted: Mon, Jul 5 5:50 PM ET (2150 GMT)
A wildfire on a mountain in eastern Arizona is approaching an astronomical observatory, but firefighters said Monday the blaze doesn't pose an immediate risk...

Titan images surprise scientists
Posted: Sun, Jul 4 11:02 AM ET (1502 GMT)
The first detailed images of Saturn's moon Titan returned by NASA's Cassini spacecraft have changed scientists’ opinions about the features found on the...

Cassini ring images delight scientists
Posted: Fri, Jul 2 10:21 AM ET (1421 GMT)
Images of Saturn's rings taken by the Cassini spacecraft as it entered orbit around the planet this week are pleasing and surprising scientists with...

NASA Marshall restructures
Posted: Fri, Jul 2 10:08 AM ET (1408 GMT)
Following on the heels of a restructuring of NASA Headquarters, NASA's Marshall Space Flight Center (MSFC) announced this week its own reorganization. The realignment...

Cassini arrives at Saturn
Posted: Thu, Jul 1 10:56 AM ET (1456 GMT)
The Cassini spacecraft entered orbit around Saturn late Wednesday night, ending a nearly seven-year journey from Earth. Spacecraft controllers received data from the spacecraft...

ISS spacewalk a success
Posted: Thu, Jul 1 10:47 AM ET (1447 GMT)
The two crewmembers on the International Space Station successfully completed a spacewalk outside the station Wednesday evening, repairing a faulty gyro. Gennady Padalka and Michael...