More trouble for Sunita Williams? NASA fears astronauts may stay months in space: Here's why

India-origin Nasa astronauts Sunita Williams and Butch Wilmore are stranded in space with no exact date for return to Earth announced. The two astronauts were unable to board their flight home after the Boeing Starliner spacecraft malfunctioned during the journey to ISS. Launched on June 5, Starliner's first crewed test flight was projected to last only a few days. NASA has now scrapped the return three times after it failed to rectify the spacecraft's helium leaks and thruster outage issues. Watch!