Ariane launches two satellites
Posted: Sat, Aug 12 10:47 AM ET (1447 GMT)
An Ariane 5 successfully launched French military and Japanese commercial communications satellites Friday night. The Ariane 5 ECA lifted off from Kourou, French Guiana at...

Report: IAU group to recommend keeping Pluto as planet
Posted: Fri, Aug 11 8:44 AM ET (1244 GMT)
A working group is expected to recommend to the International Astronomical Union (IAU) that Pluto be retained as a planet, opening the door for other...

Hubble discovers distant exoplanet's star
Posted: Fri, Aug 11 8:37 AM ET (1237 GMT)
A distant extrasolar planet discovered three years ago has now been matched up with its parent star, astronomers reported this week. the planet was discovered...

James Van Allen dies
Posted: Wed, Aug 9 1:41 PM ET (1741 GMT)
James A. Van Allen, the scientist who was one of the pioneers of the early US space program and the discoverer of the Earth-girdling...

Chandra measures Hubble constant
Posted: Wed, Aug 9 8:55 AM ET (1255 GMT)
Astronomers have used data from NASA's Chandra X-Ray Observatory to make an independent measure of the Hubble constant, a key metric of the...

Proton launches communications satellite
Posted: Sat, Aug 5 7:29 AM ET (1129 GMT)
A Proton rocket launched a European satellite Friday night on the first commercial mission for the rocket since a failure five months ago. The Proton...

ISS crew completes spacewalk
Posted: Fri, Aug 4 6:39 AM ET (1039 GMT)
Two astronauts performed a six-hour spacewalk outside the International Space Station on Thursday that was so productive that they were able to perform several...

Antenna failure disrupts DSN
Posted: Thu, Aug 3 6:33 AM ET (1033 GMT)
A key antenna of NASA's Deep Space Network will remain offline longer than planned, potentially disrupting a number of missions. The 70-meter antenna...

Atlantis rolled out to launch pad
Posted: Wed, Aug 2 7:46 PM ET (2346 GMT)
The space shuttle Atlantis is now on its launch pad in preparation for a launch later this month after weather finally allowed NASA to roll...

Dust storms may rule out Martian life on surface
Posted: Wed, Aug 2 8:01 AM ET (1201 GMT)
Planet-wide dust storms that periodically form on Mars may create powerful chemicals that would inhibit the development of life on the planet's surface,...