Four astronauts boarded SpaceX’s Falcon 9 rocket to replace Williams and Wilmore at the ISS.. These four astronauts are - NASA astronauts Anne McClain and Nichole Ayers, Japan Aerospace Exploration Agency (JAXA ) astronaut Takuya Onishi, and Roscosmos cosmonaut Kirill Peskov.

The Crew-10 mission aboard a SpaceX Falcon 9 rocket occurred at 7:03 pm EDT (Saturday, 4:33 am IST) from Launch Complex 39A at NASA's Kennedy Space Center.

This is a routine rotation of crew on the space station, but it is garnering extra attention because it will allow the return to Earth of Sunita Williams and Butch Wilmore, two NASA astronauts whose brief scheduled visit to the space station last June was unexpectedly stretched to more than nine months.