China says its newly equipped Tiangong space station will be up and running by next year while the future of the nearly 23-year-old International Space Station remains uncertain after 2024. China says its spacecraft has more advanced technology, like a more efficient propulsion system and a tag-along space telescope.

WSJ unpacks the design and technology of both space stations and takes a look at China’s history in space exploration.

Photo: CCTV; NASA

0:00 China’s new space station
1:04 China’s space history
2:20 Module design
4:18 Xuntian telescope and collaborations
6:05 What’s next?

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