Due to problems such as propulsion system failure and helium leakage, Boeing's Starliner spacecraft's return trip has been delayed, leaving the two astronauts it carried stranded in space for over 50 days. At present, the two American astronauts still do not know when they will return to Earth. On the 25th, NASA said the problem has not been resolved and they are also considering backup plans, such as returning on SpaceX's Dragon spacecraft. According to information previously released by NASA, the Starliner can dock at the space station for up to 45 days, but in special circumstances, it can be extended to 90 days. (CCTV News)
美国2名宇航员被困太空超50天
Two American astronauts have been trapped in space for over 50 days.
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