Chelyabinsk-class impacts more frequent that previously thought
Posted: Thu, Nov 7 7:26 AM ET (1226 GMT)
Meteors like the one that exploded above the Russian city of Chelyabinsk earlier this year may be more frequent that previously thought, raising the impact...

India launches Mars Orbiter Mission
Posted: Tue, Nov 5 8:27 AM ET (1327 GMT)
A PSLV rocket successfully placed India's first Mars mission into a transfer orbit on Tuesday. The Polar Satellite Launch Vehicle lifted off from the...

Study: Milky Way may have billions of potentially Earth-like planets
Posted: Tue, Nov 5 5:45 AM ET (1045 GMT)
More than 20 percent of the Sun-like stars in the Milky Way galaxy may have Earth-sized planets orbiting in those stars' habitable zones,...

ATV reenters as ISS preps for new crew
Posted: Sun, Nov 3 1:02 PM ET (1802 GMT)
A European cargo spacecraft that undocked from the International Space Station earlier in the week reentered on Saturday, as the station made preparations for the...

Countdown begins for launch of India's first Mars mission
Posted: Sun, Nov 3 12:47 PM ET (1747 GMT)
The Indian space agency ISRO started the countdown Sunday of the launch Tuesday of that country's first Mars mission. The 56 hour, 30 minute...

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...