NASA astronauts Butch Wilmore and Suni Williams set out for a weeklong mission at the International Space Station last year. After nine months, they are coming home.

The SpaceX capsule that will bring them back down to Earth successfully arrived at the International Space Station – along with four new astronauts – on Sunday. The stuck astronauts, Butch Wilmore and Suni Williams, will now be able to return home after a trip meant to last a few days became nine months on the orbiting lab.