NASA astronauts Suni Williams and Butch Wilmore left for nine months at the International Space Station (ISS), after Boeing Starling Capsules that wore them there, encountered mistakes.
On March 14, Spacex launched a rocket that transported a new crew to ISS, as part of a plan to restore astronauts to Earth.
Suni and Butch should start their way back to Earth two days after a new crew arrives, but the conditions on Earth could delay the return.
Aruna Iyengar BBC explains that astronauts have ended up on ISS for nine months.
Video taken and edited by Gabriela Boccaccio.
Video produced by Ian Casey and Rachel Flynn.
