A SpaceX capsule delivered four astronauts to the International Space Station early on Sunday to allow a pair of stuck NASA astronauts to return home.

Hague and Gorbunov arrived at the station in late September, on SpaceX's Crew-9 mission. Williams and Wilmore have been in orbit since early June, when they launched on the first crewed mission of Boeing's Starliner spacecraft.

SpaceX Crew-10 mission successfully docked at the International Space Station on Saturday night, setting the stage to rescue two stranded NASA astronauts who have been stuck in space for months.