NASA astronauts Butch Wilmore and Suni Williams, who have been on the International Space Station for two months despite an intended eight-day stay, may not come home on the Boeing-built capsule that brought them there. But the alternative may not reach them until September.
NASA and Boeing are in the midst of the inaugural crew flight test (CFT) of Starliner, a semireusable vessel to the ISS under contract for agency service missions as soon as next year. But en route to the orbital laboratory, the spacecraft suffered several anomalies that have led teams to keep it on the ISS for further testing.
