Crew-10 astronauts will board SpaceX Falcon 9 rocket to International Space Station, which sets up the return to Earth of Butch Wilmore, Suni Williams

The quartet will head to the International Space Station for a roughly six-month stay. They'll relieve four other astronauts — NASA's Nick Hague, Suni Williams and Butch Wilmore and cosmonaut Aleksandr Gorbunov, who will come back to Earth a few days after Crew-10 docks.