This 70mm frame shows the 50,162-pound Chandra X-ray Observatory before it was tilted upward for its release from the Space Shuttle Columbia's payload bay on July 23, 1999, just a few hours following the shuttle's arrival ...
The National Transportation Safety Board is considering what caused a Virgin Galactic spaceship to break apart over the Mojave Desert during a test flight 10 months ago, killing the co-pilot and seriously injuring the pilot.
NASA has selected four veteran astronauts to lead the way back into orbit from U.S. soil.
The spectacular failure of the SpaceX Falcon 9 rocket last week underscores a growing problem for NASA: its reliance on private companies and Russia in order to launch many of its crucial missions.
ESA astronaut Paolo Nespoli will be heading for space a third time, as part of Expeditions 52 and 53 to the International Space Station. He will be launched on a Soyuz vehicle in May 2017 on a five-month mission.