Paraterraforming vs. terraforming the Moon and Mars

William wrote:

> I think it will be paraterraformed not terraformed. This means having
> domes instead of going to the monumental trouble and waste of trying
> to make the entire atmosphere breathable. This offers *many*
> advantages over terraforming, not the least of which is it would
> allow Mars to be settled incrementally. The domes might start out
> "small" and be only a few hundred meters across, but could/would grow
> in size to eventually being 100's of kilometers across and enclosing
> vast spaces and entire ecosystems, and being almost
> indistinguishable from full-blown terraforming with open sky.

What about radiation shielding?

> It also offers good old fashioned real gravity, not simulated gravity
> with its attendant coriolis force, and an open sky.

Real gravity, but perhaps not enough of it.

Best,
- Joe