Soyuz MS-23 is scheduled to return two Russian cosmonauts and one American astronaut, the three of which will have been in space for a year.

Landing in Kazakhstan will be Russian cosmonauts Sergey Prokopyev and Dmitry Petelin, as well as NASA astronaut Frank Rubio. The trio was originally supposed to return to Earth in March 2023, after having launched to the outpost in Soyuz MS-22 in September 2022.

However, Soyuz MS-22 suffered damage when a micrometeoroid stuck the vehicle’s external coolant line, causing it all to leak out.

Soyuz MS-23 was sent to the outpost in February 2023 to act as a replacement vehicle for the three-person Soyuz crew.