Watch the Falcon 9 launch from pad 39A

Two American astronauts and one Russian cosmonaut boarded their Soyuz MS-06 landing craft for a homecoming Tuesday night, U.S. time, concluding 168 days in orbit. The trio undocked from the International Space Station at 5:08 p.m. EST (2208 GMT), and landed on the snowy steppe of Kazakhstan at 9:31 p.m. EST (0231 GMT Wednesday).

Watch as the launch of a Falcon 9 rocket on a space station resupply run is aborted 13 seconds before liftoff when ground controllers were alerted to a potential problem with the vehicle’s second stage steering system.

NASA’s small Lunar Flashlight spacecraft, sent to the moon last year to search for water ice deposits at the lunar south pole, will not be able to complete its science mission after a problem with the probe’s propulsion system.