NASA's two stuck astronauts headed back to Earth with SpaceX on Tuesday to close out a dramatic marathon mission that began with a bungled Boeing test flight more than nine months ago.

On an episode of “The Story Behind the AP Story,” Associated Press space writer Marcia Dunn discusses the space odyssey of NASA’s two stuck astronauts.

After an epic nine months in space, Nasa astronauts Butch Wilmore and Suni Williams are finally on their way home. Their stay on the International Space Station (ISS) was only supposed to last eight days, but their mission was dramatically extended after the spacecraft that they arrived on suffered technical problems.