NASA astronauts Sunita "Suni" Williams and Barry "Butch" Wilmore have been on the International Space Station for more than eight months, even though they initially expected to stay for just about eight days.

NASA and SpaceX scrubbed a pre-planned rescue mission just before launching to the International Space Station (ISS) that was going to provide a salve for two stranded astronauts to eventually return to Earth.

A routine crew rotation at the International Space Station has taken on unusual significance: It paves the way for a pair of astronauts stranded for more than nine months to finally come home.