Initially, the mission aimed to test the capabilities of Boeing's Starliner on its maiden voyage. However, persistent problems with the spacecraft's propulsion system have left Wilmore, 61, and Williams, 58, in a state of uncertainty. NASA officials confirmed in a recent media teleconference that the astronauts might not return home on Starliner at all.The situation has become so dire that Wilmore and Williams have already prepared their families for the possibility of a much longer stay in space. “Butch and Sunita are ready to support whatever we need to do,” said Dana Weigel, Program Manager for the ISS. “They’re prepared for whatever path that we go down.”