Spacewalkers complete repairs outside ISS
Posted: Thu, Oct 16 12:07 PM ET (1607 GMT)
In the second spacewalk in as many weeks, astronauts on the International Space Station (ISS) replaced a component of the station's power system and...

Study raises doubts about viability of Mars One
Posted: Wed, Oct 15 9:29 AM ET (1329 GMT)
A proposed privately-developed one-way mission to Mars would likely kill its crew within months of arriving on the planet, according to an MIT...

Scientists find evidence of relatively recent volcanism on the Moon
Posted: Tue, Oct 14 8:01 PM ET (0001 GMT)
Analysis of images from a NASA telescope have led planetary scientists to conclude that volcanic activity took place on the Moon within the last 100...

Mars spacecraft prepare to observe comet flyby
Posted: Tue, Oct 14 9:41 AM ET (1341 GMT)
An international fleet of spacecraft orbiting and on the surface of Mars are planning to observe a comet as it makes a close flyby of...

X-37B slated to return Tuesday
Posted: Mon, Oct 13 6:20 AM ET (1020 GMT)
A secret military spaceplane that has spent more than 600 days in orbit is finally expected to land as soon as Tuesday. A US Air...

NASA resumes work on commercial crew contracts
Posted: Fri, Oct 10 8:12 AM ET (1212 GMT)
NASA announced Thursday that it has lifted a stop-work order to two companies that won commercial crew contracts last month despite an ongoing protest...

Frozen hydrazine lines blamed for Soyuz Galileo launch anomaly
Posted: Fri, Oct 10 7:57 AM ET (1157 GMT)
An investigation into a problem that stranded two Galileo satellites in the wrong orbits in August concluded that hydrazine fuel lines in the Soyuz rocket'...

X-37B to use former shuttle hangars
Posted: Fri, Oct 10 7:48 AM ET (1148 GMT)
Two hangars formerly used by the Space Shuttle program will be taken over by a secretive Air Force military spaceplane program, NASA announced this week,...

Astronauts complete ISS spacewalk
Posted: Wed, Oct 8 8:50 AM ET (1250 GMT)
Two astronauts performed a six-hour spacewalk outside the International Space Station on Tuesday, completing all the major tasks planned for the EVA. NASA's...

Japan launches weather satellite
Posted: Wed, Oct 8 8:40 AM ET (1240 GMT)
An H-2A rocket successfully launched a new weather satellite on Tuesday. The H-2A rocket lifted off from the Tanegashima Space Center at 1:...