China extends Shenzhou-21 astronaut crew's space stay by one month

China has extended the stay of Shenzhou-21's astronaut crew in space by one month after consideration from its space engineering office. Chinese state media said the purpose of the extension is to "further verify ​the technologies ⁠related to long-term astronaut stays in orbit". The three astronauts have been in space for six months and were expected to return in April.