China's space station lab module Wentian has much in common with the Tianhe core module. They share a lot of the same technology. Both vessels can even take up each other's functions at the flip of a switch. But Wentian is so much more than a backup.

For more:
https://news.cgtn.com/news/2022-07-24/Wentian-lab-module-can-take-Tianhe-s-tasks-at-the-word-of-command-1bW2Yk4lIGc/index.html

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