The return to Earth of three Chinese astronauts has been delayed until an unspecified date after their spacecraft was apparently struck by a small piece of debris, according to Chinese state media.
The three astronauts from the Shenzhou-20 mission flew to the Tiangong space station in April, and were expected to return on Wednesday at the end of a six month mission. Their replacements, the crew of Shenzhou-21, had already arrived on the weekend.
