Atlas 5 launches X-37B
Posted: Sun, Mar 6 8:42 AM ET (1342 GMT)
An Atlas 5 successfully launched a secretive military spaceplane on Saturday after a one-day delay. The Atlas 5 501 lifted off from Cape Canaveral,...

Weather delays X-37B launch
Posted: Sat, Mar 5 9:54 AM ET (1454 GMT)
Poor weather postponed Friday's scheduled launch of a military spaceplane on an Atlas 5 from Florida. The Atlas 5 501 was scheduled to launch...

Glory launch fails
Posted: Fri, Mar 4 7:28 AM ET (1228 GMT)
A NASA climate satellite failed to each orbit early Friday in a launch failure eerily similar to one just over two years ago. A Taurus...

STS-133 extended another day
Posted: Fri, Mar 4 7:17 AM ET (1217 GMT)
NASA has tacked on an additional day to the final mission of the space shuttle Discovery, giving crews more time to work on the International...

Second STS-133 spacewalk completed
Posted: Thu, Mar 3 7:53 AM ET (1253 GMT)
Two astronauts spent over six hours outside the International Space Station on Wednesday on the second and final spacewalk of the STS-133 mission. Steve...

Computer model explains low solar activity
Posted: Thu, Mar 3 7:40 AM ET (1240 GMT)
Scientists said a new computer model can explain why the Sun had a low level of activity in recent years. In a paper published in...

Leonardo installed on ISS
Posted: Wed, Mar 2 7:55 AM ET (1255 GMT)
A module that has previously been used to ferry cargo to and from the ISS has now been permanently installed on the station. STS-133...

Glory launch rescheduled
Posted: Wed, Mar 2 7:41 AM ET (1241 GMT)
NASA announced Tuesday that the launch of its Glory climate satellite has been rescheduled for this Friday. Glory is now planned for launch on a...

Spacewalkers complete first STS-133 EVA
Posted: Tue, Mar 1 6:37 AM ET (1137 GMT)
Two astronauts overcame a glitch with the International Space Station's robotic arm to complete a spacewalk on Monday. Steve Bowen and Al Drew spent...

Researchers sign contracts for suborbital spaceflights
Posted: Tue, Mar 1 6:22 AM ET (1122 GMT)
A research organization announced Monday that it has purchased tickets from two commercial suborbital vehicle operators to fly its scientists into space to carry out...