Shuttle on track for Sunday launch
Posted: Fri, Aug 25 8:05 PM ET (0005 GMT)
NASA officials said Friday that all systems are go for Sunday's launch of the space shuttle Atlantis on a mission to the International Space...

Astronomers demote Pluto
Posted: Thu, Aug 24 9:17 PM ET (0117 GMT)
Astronomers voted Thursday on a formal definition of the term "planet" that will leave the solar system with only eight such bodies, having relegated the...

Russia, China planning joint Mars mission
Posted: Thu, Aug 24 8:05 AM ET (1205 GMT)
Russia and China are planning to cooperate on a robotic Mars mission later this decade that could be the first to return Mars samples to...

NASA unveils new CEV name ahead of schedule
Posted: Wed, Aug 23 8:33 AM ET (1233 GMT)
NASA confirmed late Tuesday that the Crew Exploration Vehicle (CEV) will be known as "Orion", an announcement made a week and a half ahead of...

New planet definition could demote Pluto
Posted: Wed, Aug 23 8:25 AM ET (1225 GMT)
Less than a week after astronomers proposed a definition for the term "planet" that could increase the solar system's total to at least 12,...

Astronomers find direct evidence for dark matter
Posted: Wed, Aug 23 8:15 AM ET (1215 GMT)
Astronomers using the Chandra X-Ray Observatory and other telescopes have found what they call "direct evidence" to support the existence of the mysterious dark...

Zenit launches Korean satellite
Posted: Tue, Aug 22 8:46 AM ET (1246 GMT)
A Zenit 3SL successfully launched a South Korean communications satellite Monday night. The Sea Launch Zenit 3SL lifted off from the Odyssey launch platform on...

Shuttle antenna bolts replaced
Posted: Mon, Aug 21 8:17 PM ET (0017 GMT)
NASA shuttle managers said that a weekend repair task on the shuttle Atlantis was a success, keeping the mission on track for a launch this...

Japanese space tourist dropped from Soyuz flight
Posted: Mon, Aug 21 1:42 PM ET (1742 GMT)
A Japanese space tourist who planned to fly to the International Space Station on a Soyuz flight next month has been removed from the mission...

SpaceX, Rocketplane Kistler win COTS awards
Posted: Fri, Aug 18 9:09 PM ET (0109 GMT)
NASA announced Friday afternoon that it has signed agreements with SpaceX and Rocketplane Kistler (RpK) that will provide the two companies with funding to help...