With floating hugs and smiles all around, the two NASA astronauts who crewed the ill-fated Boeing Starliner greeted their replacements aboard the International Space Station early Sunday morning.

The Boeing Starliner spacecraft successfully completed its uncrewed flight back to Earth, NASA announced overnight. The return ended the Starliner’s most recent flight test months later than intended and leaves its original crew, NASA astronauts Barry “Butch” Wilmore and Suni Williams, aboard the International Space Station until next year.

NASA will wait at least another two days to launch its next space station crew, delaying the return of Starliner astronauts Barry "Butch" Wilmore and Sunita Williams a bit longer.