Russian cosmonaut Sergey Prokopyev, European Space Agency astronaut Alexander Gerst and NASA astronaut Serena Aunon-Chancellor are set to return to Earth in their Soyuz MS-09 spacecraft on Dec. 20, 2018.
The trio was original supposed to land Dec. 13, 2018, but because of the Oct. 11, 2018, Soyuz MS-10 launch abort, this date of the crew’s return was postponed by about a week. Additionally, the Soyuz MS-11 crew launch was moved forward to Dec. 3.
Soyuz MS-09 return timeline
Change of Command Ceremony: 21:40 UTC
Expedition 57 Commander Alexander Gerst formally handed over command of the space station over to soon-to-be Expedition 58 Commander Oleg Kononenko.
Hatch closure: 22:30 UTC
Undocking: 1:40 UTC
Deorbit burn: 4:10 UTC
Landing: 5:03 UTC
Once Soyuz MS-09 undocks from the space station, Expedition 57 will officially conclude and Expedition 58 — consisting of Russian cosmonaut Oleg Kononenko, NASA astronaut Anne McClain and Canadian Space Agency astronaut David Saint-Jacques — will start with Kononenko serving as commander.
NASA TV departure coverage is expected to start at 21:45 UTC Dec. 19.