New experiment fails to detect dark matter particles
Posted: Fri, Nov 1 7:18 AM ET (1118 GMT)
The initial run of a new experiment designed to detect dark matter failed to detect any candidate dark matter particles, scientists said this week. The...

Astronomers discover Earth-sized, rocky, but hot exoplanet
Posted: Thu, Oct 31 2:06 PM ET (1806 GMT)
Astronomers announced Wednesday this discovery of an extrasolar planet similar in size and density to the Earth, but closely orbiting its star. Kepler-78b, detected...

Sierra Nevada calls Dream Chaser flight a success despite gear failure
Posted: Wed, Oct 30 7:36 AM ET (1136 GMT)
Sierra Nevada Corporation said Tuesday that Saturday's glide test of a prototype of its Dream Chaser spacecraft was largely a success despite the failure...

ATV undocks from ISS
Posted: Wed, Oct 30 7:25 AM ET (1125 GMT)
A European robotic cargo spacecraft undocked from the International Space Station on Monday in advance of its destructive reentry later this week. The Automated Transfer...

China launches imaging satellite
Posted: Tue, Oct 29 8:22 AM ET (1222 GMT)
A Chinese rocket launched what it called a remote sensing satellite, but others believe is a reconnaissance satellite, on Tuesday. The Long March 2C rocket...

Dream Chaser suffers crash landing after first free flight
Posted: Sun, Oct 27 11:17 AM ET (1517 GMT)
A prototype of a proposed commercial crew spacecraft made its first free flight on Saturday, but suffered unspecified damage when its landing gear failed on...

Proton launches Sirius satellite
Posted: Sat, Oct 26 7:33 AM ET (1133 GMT)
A Proton rocket successfully launched early Saturday a new radio broadcasting satellite for a US company. The Proton M rocket carrying the Sirius FM-6...

China launches experimental satellite
Posted: Sat, Oct 26 7:19 AM ET (1119 GMT)
A Chinese Long March rocket placed what officials described as an experimental satellite into orbit on Friday. The Long March 4B rocket lifted off from...

Astronomers find new record-holder for most distant galaxy
Posted: Fri, Oct 25 7:59 AM ET (1159 GMT)
Astronomers announced this week the discovery of a galaxy that sets a new record for the most distant galaxy from the Earth. The galaxy, designated...

Cygnus spacecraft reenters
Posted: Thu, Oct 24 8:08 AM ET (1208 GMT)
The first Cygnus cargo spacecraft ended its mission Wednesday by reentering over the South Pacific. The spacecraft, which departed from the International Space Station Tuesday...