Specifications
Tiangong-3's 22-metric-ton core module will be around 18.1 metres (59 ft) long and will have a maximum diameter of 4.2 metres (14 ft). It is expected to provide:
- Unaided 40-day habitability for three astronauts.
- Testing for regenerative life-support technology, and verification of methods of orbital replenishment of propellant and air.
- A multi-docking berthing mechanism, allowing up to four spacecraft to dock with it simultaneously.
Read more about this topic: Tiangong 3