That’s how long Boeing Starliner’s mission — its first flight test with crew aboard — was supposed to last. But this mission has been singular in almost every way, and astronauts Butch Wilmore and Suni Williams have instead spent the past nine and a half months aboard the International Space Station.

The NASA astronauts who crewed the Boeing Starliner could be on their way home sooner than expected due to weather conditions off the Florida coast.