NASA has decided that Butch and sunny will return with crew n next February NASA's decision switch spaceships and space companies mid-mission ignition back in June astronauts Butch Wilmore and sunny Williams flew to the International Space Station on Boeing Starliner but now they'll fly home next February in a SpaceX crew Dragon despite Boeing's insistence Starliner is safe to fly the back you know it's disappointing that uh that they're not coming home on Starliner but that's okay it's a test flight NASA spent weeks analyzing issues Starliner developed on its flight to the ISS specifically helium leaks and the overheating of small maneuvering thrusters that propulsion system is critical to the return flight home including undocking and the braking burn on the return to Earth the small engines need to fire hundreds of times to keep the spacecraft in the precise orientation for safe re-entry and on target touchdown instead Starliner will return uncrewed next month there was just too much uncertainty in the prediction of the thrusters it was just too much risk with the crew in a statement Boeing said we continue to focus first and foremost on the safety of the crew and spacecraft we are executing the mission as determined by NASA but NASA's decision is bound to frustrate the Legacy Aerospace Giant in what the space agency admitted was a dramatic change so how now do you begin to rebuild that relationship of trust with boing well I don't think we're we're rebuilding trust I think we're looking at the data and we view the data and the uncertainty that's there differently than Boeing does the two astronauts originally were supposed to spend eight days on the space station Saturday was their 80th day in space and they now have 6 months to go Mark stman CBS News at the Johnson Space Center