With the new revelation that the Chinese Space Agency (CNSA) has built not one but two #Tianhe (Mir like) Space Station core modules, one of two possibilities presents themselves. 1) One is simply a backup. 2) There is an intention to mate them together as seen in this graphic.
Further articles on the same subject
Chinese Space Agency / Mir / Space Station
Newsworthy Extraterrestrials - It’s been a big week for alien news. It seems (on the afternoon of the 20th) that the Area 51 assault turned into a flash mob party. And the Navy “confirmed” the videos made by its pilots in 2004 and 2015 were authentic.