Kepler discovered smallest exoplanet yet around a Sun-like star
Posted: Thu, Feb 21 7:32 AM ET (1232 GMT)
Astronomers announced Wednesday they have discovered the smallest known extrasolar planet to orbit a Sun-like star, a world only slightly larger than the Moon....

NASA confirms Curiosity collected rock sample with drill
Posted: Thu, Feb 21 7:21 AM ET (1221 GMT)
NASA's Curiosity Mars rover has collected the first rock sample obtained from within a Martian rock, project officials said Wednesday. Curiosity used its drill...

ISS temporarily loses communications with the ground
Posted: Wed, Feb 20 7:14 AM ET (1214 GMT)
A communications glitch cut off the International Space Station's primarily link to the ground for nearly three hours on Tuesday. The loss of communications...

ISS experiment to publish data on dark matter soon
Posted: Tue, Feb 19 7:22 AM ET (1222 GMT)
The Nobel laureate leader of a particle physics experiment on the International Space Station said Sunday that his team plans to soon publish its first...

Cosmic rays linked to supernovae
Posted: Tue, Feb 19 7:12 AM ET (1212 GMT)
Astronomers have found evidence suggesting that high-energy cosmic rays are produced in the shock fronts of supernova explosions. Observations by ground and space-based...

Meteor explodes over Russian city
Posted: Fri, Feb 15 7:38 PM ET (0038 GMT)
A small asteroid entered the Earth's atmosphere and burst over the Russian city of Chelyabinsk Friday morning, injuring more than 1,000 people and...

Small asteroid to fly past the Earth
Posted: Fri, Feb 15 6:28 AM ET (1128 GMT)
A small asteroid will pass closer to the Earth Friday than many satellites, but does not pose an impact threat to the Earth. Asteroid 2012...

Antares hot fire test aborted
Posted: Thu, Feb 14 6:26 AM ET (1126 GMT)
A static "hot fire" test of the first stage engines of a new launch vehicle was aborted Wednesday evening in Virginia. Orbital Sciences Corporation planned...

Proton launch anomaly blamed on turbopump bearing
Posted: Wed, Feb 13 7:47 AM ET (1247 GMT)
Investigators have blamed a turbopump bearing failure for the premature shutdown of a Proton upper stage in December, International Launch Services (ILS) announced Tuesday. The...

Atlas launches new Landsat satellite
Posted: Tue, Feb 12 7:16 AM ET (1216 GMT)
An Atlas 5 rocket successfully placed the newest Landsat remote sensing satellite into orbit on Monday. The Atlas 5 rocket lifted off from Space Launch...