Great link, and great picture. But maybe that should be FOUR space stations in LEO rather than three? I noticed that in the article you linked it says:
Quote:
A US-based company, Bigelow Aerospace, has also been planning to construct a commercial space station using expandable habitats. They launched prototypes in 2006 and 2007, and in 2011 plan to launch a larger 180,572 square ft. module, which they tout as “fully operational.”
“What competition do we see on the horizon?” said Robert Bigelow, founder and president on the Bigelow Aerospace website. “Nobody.”
So the four would be the ISS, the CSS, the Chinese one and the Bigelow one.
Do you have any link about the proposed Chinese space station?