Astronauts swap ISS coolant pump unit during spacewalk
Posted: Sun, May 20 1:39 PM ET (1739 GMT)
Two astronauts successfully completed a spacewalk Wednesday to maintain the station's cooling system. During the six-and-a-half-hour spacewalk, NASA astronauts Drew...

Mark Geyer named next director of Johnson Space Center
Posted: Sun, May 20 1:38 PM ET (1738 GMT)
Mark Geyer will be the next director of NASA's Johnson Space Center. NASA named Geyer to the position May 14, effective May 25 when...

Scientists detect evidence of Europa plume in Galileo data
Posted: Sun, May 20 1:37 PM ET (1737 GMT)
NASA's Galileo spacecraft flew through a plume of water ejected from the jovian moon Europa, scientists said Monday. Scientists revisited data from a 1997...

First Falcon 9 Block 5 launches Bangladeshi satellite
Posted: Sat, May 12 6:18 PM ET (2218 GMT)
The first Block 5 version of SpaceX's Falcon 9 rocket successfully launched a communications satellite for Bangladesh Friday afternoon. The Falcon 9 lifted off...

NASA to fly small helicopter on Mars 2020 rover mission
Posted: Sat, May 12 6:14 PM ET (2214 GMT)
NASA announced Friday that it will fly a small helicopter as a technology demonstration on the Mars 2020 rover mission. The Mars Helicopter, weighing less...

ULA selects RL10 for Vulcan upper stage
Posted: Sat, May 12 6:11 PM ET (2211 GMT)
United Launch Alliance announced Friday that it will use the RL10 engine from Aerojet Rocketdyne for its Vulcan upper stage. ULA said it selected the...

Britain considers satellite navigation system
Posted: Sat, May 12 6:10 PM ET (2210 GMT)
One British aerospace executive said that the UK could do its own satellite navigation system relatively quickly and inexpensively. Colin Paynter, managing director of Airbus...

Next Falcon Heavy launch delayed
Posted: Sat, May 12 6:09 PM ET (2209 GMT)
The next Falcon Heavy launch has been delayed to October. An Air Force spokesperson said that its Space Test Program 2 mission, the next flight...

Virgin Galactic performs first powered flight of second SpaceShipTwo
Posted: Sun, Apr 8 9:36 AM ET (1336 GMT)
Virgin Galactic's second SpaceShipTwo made its first powered flight Thursday. The vehicle, named VSS Unity, was released from its WhiteKnightTwo carrier aircraft at about...

Ariane 5 launches two communications satellites
Posted: Sun, Apr 8 9:30 AM ET (1330 GMT)
The Ariane 5 returned to flight Thursday, launching two communications satellites. The rocket lifted off from Kourou, French Guiana, at 5:34 pm EDT (2134...