It's unclear when Starliner will fly again, and whether or not that mission will carry astronauts. More than six months after its first crewed mission came to a disappointing end, the future is still murky for Boeing's Starliner astronaut capsule.

Now that Butch Wilmore and Suni Williams are home, ending a 9-month spaceflight, questions remain about the troubled Starliner they rode to orbit.