Fire threatens Arizona observatory
Posted: Fri, Jul 15 8:37 AM ET (1237 GMT)
A wildfire in the Arizona mountains south of Tucson is threatening a major observatory. The "Florida" fire, named after the mountain peak where the fire...

Shuttle launch pushed back to at least Sunday
Posted: Thu, Jul 14 11:25 PM ET (0325 GMT)
NASA shuttle managers said Thursday afternoon that the earliest possible launch date for Discovery is Sunday, and could be much later. Wednesday's scheduled launch...

Exoplanet discovered in triple star system
Posted: Thu, Jul 14 8:18 AM ET (1218 GMT)
Astronomers announced Thursday that they have discovered an extrasolar planet orbiting a star that is a part of a triple-star system. In a paper...

Fuel sensor glitch scrubs shuttle launch
Posted: Wed, Jul 13 6:20 PM ET (2220 GMT)
A problem with a fuel sensor on the shuttle's external tank, similar to one NASA encountered earlier this year, forced shuttle managers to delay...

Shuttle launch remains on schedule
Posted: Wed, Jul 13 8:19 AM ET (1219 GMT)
The launch of the space shuttle Discovery remains on track for Wednesday afternoon despite an incident late Tuesday that caused minor damage to the orbiter....

NASA awards CEV study contracts
Posted: Wed, Jul 13 8:06 AM ET (1206 GMT)
NASA announced Tuesday that it has issued study contracts to the two teams who submitted proposals for the development of the Crew Exploration Vehicle (CEV),...

NASA tying up loose ends for shuttle launch
Posted: Tue, Jul 12 8:23 AM ET (1223 GMT)
Shuttle managers said late Monday they were handing only a few "loose ends" in the final days before Wednesday afternoon's launch of the shuttle...

Spacehab proposes ISS cargo spacecraft
Posted: Tue, Jul 12 8:11 AM ET (1211 GMT)
Houston-based Spacehab, a company best known for developing modules flown on the space shuttle, is planning to develop a modular series of cargo spacecraft...

STS-114 countdown begins
Posted: Mon, Jul 11 8:41 AM ET (1241 GMT)
The countdown for Wednesday afternoon's launch of the shuttle Discovery started Sunday evening with no technical issues reported and a favorable weather forecast. The...

Deep Impact reveals dusty nature of comet
Posted: Mon, Jul 11 8:33 AM ET (1233 GMT)
Comet Tempel 1 released far more dust than scientists expected when a probe released by NASA's Deep Impact spacecraft collided with the nucleus last...