A Dragon capsule undocked from the International Space Center early Tuesday, sending NASA astronauts Suni Williams and Butch Wilmore on their way home after being stranded on the orbital laboratory for nine months.

Butch Wilmore and Suni Williams, two veteran NASA astronauts who have been stuck on the International Space Station for nine months, are scheduled to begin their return to Earth early on Tuesday morning on a long-awaited flight home to cap an unusual mission.

NASA astronauts Butch Wilmore and Suni Williams set out for a weeklong mission at the International Space Station last year. After nine months, they are coming home.