A NASA official has offered some background on why astronauts Sunita 'Suni' Williams and Barry 'Butch' Wilmore have had to stay in space for nine months after their original plan to return home fell through.

Sunita Williams and Barry “Butch” Wilmore, the NASA astronauts whose mission aboard the International Space Station was extended from about eight days to nine months, are finally set to come home. The return will have to wait a little longer,

With favorable weather forecast at Kennedy Space Center’s Launch Complex 39A, NASA’s SpaceX Crew-10 mission is set to launch at 7:49PM ET tonight. Flying into orbit atop a SpaceX Falcon 9 rocket, the Dragon spacecraft, will dock with the ISS at around 6:00AM ET on March 13th.