SpaceX launch scheduled for Wednesday will carry replacement crew for astronauts who have been stuck on the International Space Station since their troubled Starliner mission.

NASA is preparing to return two astronauts to Earth after their 10-day mission on board the International Space Station (ISS) turned into a nine-month trip. Butch Wilmore and Suni Williams launched into space on Boeing’s Starliner last year, but were left "stranded" on the station after issues with the spacecraft put their return on hold.

NASA astronauts Suni Williams and Butch Wilmore are expected to return home after spending nine months in orbit.