"AG" == Austin Gosling writes:
AG I think that our brains
AG have finally evolved to the point where they dominate
AG evolutionary developments, and do not expect major refinements
AG of our bodies, so I presume we will leave the planet
AG physically much as we are now.

Amusing how the talk of the moon or Mars assumes that when we
establish a regular outpost there we'll have much the same brains and
bodies as we do now.

I say not a chance. With our current brains we're making good
progress towards real genetic engineering, and one of the first things
we'll do is make ourselves smarter (as well as healthier, stronger,
and so forth)...and then when we're smarter we'll do even better
genetic and/or machine intelligence, etc. This idea is called the
"singularity" and once you ponder it a bit you can see how it's
inevitable, assuming civilization isn't terminated first by some
suicidal nutcases with nukes or bugs.

So a hundred years from now humankind--at least the fraction that can
pay for these engineered changes...will be much changed, and only
superficially similar to who we are now.

My guess is at that point, our much smarter selves will have gone way
beyond visiting moons or planets in this solar system, and may be
beyond physical bodies for intelligence anyway. But assuming we are
still in physical containers of some sort, we might well be searching
other stars. The solar system will seem pretty old hat.
--
"He uses statistics as a drunken man uses lamp-posts... for support
rather than illumination." - Andrew Lang (1844-1912)