The crew-swap mission will enable NASA’s Butch Wilmore and Suni Williams to return home from the International Space Station.

Two NASA astronauts are just days away from returning to Earth after nine months in space. Wednesday evening, NASA astronauts Anne McClain and Nichole Ayers, along with Japan Aerospace Exploration Agency astronaut Takuya Onishi and Russian cosmonaut Kirill Peskov,

The Starliner saga is a step closer to its end with the launch of a SpaceX vehicle that will relieve the astronauts who flew on the Boeing spacecraft.

The replacements for NASA’s two stuck astronauts launched to the International Space Station on Friday night, paving the way for the pair’s return after nine long months. Butch Wilmore and Suni Williams need SpaceX to get this relief team to the space station before they can check out.

SpaceX's Falcon 9 rocket lifted off at 7:03 p.m. ET (2303 GMT) from NASA's Kennedy Space Center in Florida carrying four astronauts who will replace Wilmore and Williams, both of whom are veteran NASA astronauts and retired U.

SpaceX's Crew-10 astronaut mission will arrive at the International Space Station tonight (March 15), and you can watch the action live.

The Crew-10 mission will allow NASA astronauts Barry Wilmore and Sunita Williams to return to Earth after spending nine months aboard the International Space Station, far longer than their planned weeklong stay.