Butch Wilmore and Suni Williams were barely known outside space circles when they strapped in for what was supposed to be a quick test flight of Boeing's Starliner capsule last June. Nine months later,

Suni Williams and Butch Wilmore originally planned to stay just a week on the space station, but problems with their Boeing vehicle forced them to remain there.

Two NASA astronauts are heading home on a SapceX ship after about nine months at the International Space Station.