At this time, there are 237 spaceports in Tiangong, large and small, and a spinning column made of super-strong material is also arranged, and the overall weight reaches 1.53 million tons.
Due to the continuous rise of space capsule technology, space capsule is becoming more and more advanced, not only the unit weight is gradually reduced, but also the unit cost is reduced The total volume of 1.53 million tons of