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...

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...