CALIPSO/CloudSat launch scrubbed
Updated: Sat, Apr 22 10:43 AM ET (1443 GMT)
Originally Posted: Fri, Apr 21 12:03 PM ET (1603 GMT)
The launch of two Earth sciences spacecraft was scrubbed early Friday because of a communications problem. A Delta 2 was scheduled to lift off from...

Atlas launches Astra 1KR
Posted: Fri, Apr 21 2:59 AM ET (0659 GMT)
An Atlas 5 rocket successfully launched a European communications satellite Thursday afternoon. The Atlas 5 411 lifted off from Launch Complex 41 at Cape Canaveral...

ISS orbit reboost fails
Posted: Thu, Apr 20 3:01 PM ET (1901 GMT)
A planned reboost maneuver using engines on the International Space Station was aborted Wednesday when one of the two engines failed to fire, but the...

EVA dropped from next shuttle mission
Posted: Tue, Apr 18 8:02 AM ET (1202 GMT)
One of the three spacewalks previously planned for the STS-121 shuttle mission this year has been canceled because of scheduling constraints, NASA officials said...

Minotaur launches smallsat constellation
Posted: Sat, Apr 15 11:58 AM ET (1558 GMT)
A Minotaur rocket launched a constellation of six small satellites for a US-Taiwan project to study terrestrial and space weather. The Minotaur lifted off...

Sea Launch places Japanese satellite in orbit
Posted: Thu, Apr 13 8:40 AM ET (1240 GMT)
A Zenit 3SL rocket successfully launched a US-built Japanese communications satellite Wednesday evening. The Zenit 3SL, operated by the multinational venture Sea Launch, lifted...

"Tenth planet" only slightly larger than Pluto
Posted: Wed, Apr 12 2:07 PM ET (1807 GMT)
New observations of an object that last year was unofficially proclaimed the solar system's tenth planet have revealed that the world is only slightly...

Venus Express enters orbit
Posted: Tue, Apr 11 6:24 PM ET (2224 GMT)
Venus Express, ESA's first mission to the planet Venus, entered orbit around the cloud-enshrouded world Tuesday. The spacecraft, launched in November 2005, fired...

NASA to send impactor probe to the Moon
Posted: Mon, Apr 10 8:45 PM ET (0045 GMT)
NASA will fly a small spacecraft designed to crash into the lunar surface in search of water ice, the space agency revealed Monday. The Lunar...

Ariane to launch Superbird 7
Posted: Mon, Apr 10 8:24 PM ET (0024 GMT)
Arianespace has won a contract to launch a Japanese communications satellite in 2008, the launch services company announced Monday. An Ariane 5 will launch the...