The core module of China's Tiangong space station has passed the milestone of 1,000 days in low Earth orbit. China launched the 54-foot-long (16.6 meters) module — named Tianhe, or "Harmony of the ...

China has been operating its completed Tiangong orbital outpost for almost two years now — and is looking to expand its capabilities with new modules and spacecraft. The three-module, T-shaped ...