Two NASA astronauts, stranded at the International Space Station since June, could return to Earth weeks earlier than originally planned after SpaceX agreed to swap capsules for its upcoming flights.

NASA astronauts Sunita "Suni" Williams and Barry "Butch" Wilmore have been on the International Space Station since June, even though they initially expected to stay for just eight days. But now, NASA might bring the two astronauts home several weeks earlier than expected.

NASA astronaut Suni Williams tells John Dickerson about her extended stay in space with crewmate Barry "Butch" Wilmore aboard the International Space Station, setting a new spacewalk record, the "incredible science" the team is doing and more in an interview on "CBS Evening News Plus.