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? More from the Wall Street Journal: Visit WSJ.com: http://www.wsj.com/ Visit the WSJ Video Center: https://wsj.com/video On Facebook: https://www.facebook.com/pg/wsj/videos/ On Twitter: https://twitter.com/WSJ On Snapchat: https://on.wsj.com/2ratjSM #WSJ #China #NASA