Finally! A replacement crew is heading to the ISS, and Suni Williams and Butch Wilmore will come home at last.

Suni Williams and Butch Wilmore have been stranded on the ISS since last year. Get the status of their rescue.

Nasa decided that it would not take even a small risk in bringing back Butch and Suni on Starliner, when they had the option of returning them on SpaceX's Dragon capsule. Nasa decided the best option was to do this during a scheduled crew rotation, even though it would mean keeping the astronauts on the space station for several months.