The crew-swap mission will enable NASA’s Butch Wilmore and Suni Williams to return to Earth from the International Space Station.

Sunita Williams return LIVE Updates: Crew-10 will soon enter the ISS and join the Expedition 72 crew of NASA astronauts Nick Hague, Don Petitt, Suni Williams, and Butch Wilmore, as well as Roscosmos cosmonauts Aleksandr Gorbunov, Alexey Ovchinin, and Ivan Vagner.

The Crew-10 mission is a long-awaited first step to bring Wilmore and Williams back to Earth. The duo are scheduled to depart the ISS on Wednesday as early as 4 a.m. ET (0800 GMT), along with NASA astronaut Nick Hague and Russian cosmonaut Aleksandr Gorbunov.