NASA’s Suni Williams and Butch Wilmore have returned to Earth from a weeklong mission at the International Space Station that turned into an unexpectedly extended stay.

Because of faults with Boeing’s Starliner, Suni Williams and Butch Wilmore had to wait months for a ride back to Earth on a different spacecraft.

The pair of NASA astronauts who have been in space for over nine months returned to Earth on Tuesday after a new crew to replace them reached the ISS over the weekend.