NASA has confirmed that two U.S. astronauts, who have been on the International Space Station for over nine months, will return to Earth on Tuesday evening. Barry “Butch” Wilmore and Suni Williams will be transported back along with another American astronaut and a Russian cosmonaut in a SpaceX Crew Dragon spacecraft, which docked at the ISS early Sunday. The astronauts have been stranded since June due to propulsion failures in the Boeing Starliner spacecraft they were testing during its inaugural crewed flight, which made it unfit for their return.