The upcoming plans by ESA, NASA and the Russians to go to Mars is
promising. There is much sharing of information and in all likelihood it
will be an international effort, with the lead as well as the lion's share
of the costs going to NASA. Pres. Bush has been a strong proponent of
space and the current plans to go back to the moon as a stepping-stone to
Mars is well thought out.
There are now talks of expanding a military force in space to keep a
strong US presense, and the likely choice will be the Air Force as they
have had the role since it's inception (much to the chagrin of the Navy.
Much will have to happen and a viable threat in space would have to exist
before a US Space Force is created (and I am sure the US Navy would fight
that as they would anything that takes space $ away from them). More than
likely the USAF Space Command would get more money and duties, perhaps
leading a path one day for a US Space Corps to evole, still under the
auspices of the Air Force. BUT, until there is a viable space threat, it
remains much debate only. Star Trek remains fiction only.
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