Video: Trump call to station

A Russian cosmonaut, a German flight engineer and a NASA astronaut undocked from the International Space Station and plunged back to Earth overnight Wednesday, landing on the snowy steppe of Kazakhstan to wrap up a six-month mission.

A novel communications experiment developed by NASA and the Naval Research Laboratory has arrived at the International Space Station to prove data can be transmitted in space using X-ray signals, a breakthrough that could have uses in deep space exploration and military technology on Earth.

The Russian Soyuz MS-03 spacecraft and booster rocket were rolled out to the launch pad at the Baikonur Cosmodrome on Monday in preparation for liftoff Thursday at 3:20 p.m. EST (2020 GMT) on a two-day trek to the International Space Station.