Will the ISS really last beyond 2020?

There was a lot more hinting about letting private companies run experiments to see if they could find out things in microgravity that would lead to more reasons to keep it up there, but that never quite materialized. I can see why the Russians want to do one of their own.

I’d be curious to see what could be done with Bigelow Aerospace, SpaceX and NASA, which is why I’ll be paying close attention to what Bigelow’s module does once NASA mounts it on the ISS for a test.

“The debate over how long...