Digest Number 88

If you remember the discussion about colonizing mars using solar sail
technology, there was a claim that you could do the trip to mars in
two weeks. The sail to do this would be as large as I described for
the earth shading system.

For cooling Venus, the sail would be transluencent.

If you are interested in heating up Mars, there is a chapter in Green
Mars, where they describe such a concave mirror how to deploy it,
etc... It is a good read but don't take the space physics to
seriously.

Bill

--- In spacesettlers@y..., phoebos@w... wrote:
> Lets take it a step further. If you have this large structure
floating
> around in space anyways, and a way to move it around, you could use
it
> as a solar parasol to shade Venus, and start a very long cooldown
> process. Or you could use it to reflect extra light onto Mars, and
warm
> it up. Or to turn it into a gigantic parabola and use it to "burn
up'