Sunita Williams and Barry Wilmore departed the International Space Station (ISS) early on Tuesday morning and splashed down off the coast of Florida after a journey of 17 hours. Boeing’s Starliner, their original return spacecraft, was deemed unsafe for the journey home, forcing the astronauts to stay in space much longer than planned.

A SpaceX capsule has arrived at the International Space Station, delivering the replacements for NASA's two stuck astronauts. The new crew pulled up Sunday.

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.