Suni Williams and Butch Wilmore have been on the International Space Station for 15 weeks. They were only supposed to be there for eight days.

A SpaceX crew on a rescue mission have arrived at the International Space Station, but it will still be some time before stranded Boeing Starliner astronauts Butch Wilmore and Suni Williams can return back to Earth.

Two astronauts relinquished their seats on a four-person spacecraft so that their colleagues could return to Earth from the ISS, where they’ve been stuck since June.