Q&A with Keith Gendreau, principal investigator of the first X-ray space communications experiment (members only)

Expedition 49 commander Anatoly Ivanishin of the Russian Federal Space Agency, NASA astronaut Kate Rubins and Takuya Onishi of the Japan Aerospace Exploration Agency undock from the International Space Station aboard the Soyuz MS-01 capsule for return to Earth.

Outgoing space station commander Randy Bresnik, joined by Russian cosmonaut Sergey Ryazanskiy and European Space Agency flight engineer Paolo Nespoli, returned to Earth early Thursday after nearly five months in orbit. Their Soyuz MS-05 capsule undocked from the International Space Station at 12:14 a.m. EST (0514 GMT), and landed on the steppe of Kazakhstan at 3:37 a.m. EST (0837 GMT).

A Northrop Grumman Antares rocket rolled out of its hangar Monday night, riding a self-propelled transporter for a mile-long trip to launch pad 0A on Wallops Island, Virginia, for a predawn liftoff Thursday with a Cygnus supply ship heading for the International Space Station.