NASA on Tuesday swapped out the astronaut capsule it plans to use for an upcoming routine flight to the International Space Station, a scheduling move that will allow a slightly earlier return for two Starliner astronauts who have been on the station far longer than expected.

SpaceX and NASA under pressure to get a pair of Boeing Starliner astronauts home sooner than later announced Tuesday they have shifted plans for the next mission to the International Space Station.

NASA said SpaceX will switch capsules and bring Butch Wilmore and Needham native Suni Williams home in mid-March.