A Russian Soyuz spacecraft is set to send a Russian cosmonaut and two spaceflight participants to the International Space Station.

Soyuz MS-20 will be the first human mission to the ISS that won’t take any crewmembers to the orbiting outpost. Aboard will be professional Russian cosmonaut Alexander Misurkin and spaceflight participants Yusaku Maezawa and Yozo Hirano.

Liftoff is slated to occur at Baikonur Cosmodrome, Kazakhstan, in December 2021. It’ll take the trio six hours to reach the ISS where they are slated to remain for about eight days before returning to Earth.