Originally posted by fiftyfifty
So we could do it in 8 years at half the speed of light? I would be willing to give up 20 years of my life to get there, li ve there, research and
hopefully comeback in one piece! Or if humanity depended on it.. would years and years of travel be so bad? All we need is the fuel.
EDIT: Ok maybe not 20 years. Thats a long time unless you took all your friends and family with you

and a man has needs
[edit on 14-4-2007 by fiftyfifty]

Actually, it would take more like 9 years, as Alpha Centauri is a little
more than 4 light years, and you would be traveling slower than light.
Another interesting thing to, if you were traveling at .9
c, even though
it would take nine years to an outside observer, only a few months would
actually pass on the spaceship.
The one big problem is that actually accelerating a ship to .9
c
requires huge amounts of power, of which we are just not capable of
right now, though I suspect in 40-60 years we will have the necessary
technology to accelerate a ship to .5
c, though it would take
additional time to accelerate it to that speed.
While this works with stars within 20LY of Earth, if you send a ship to
a star say 120 light years away, it's possible that by the time the ship
reached there, there would already be a human colony since in the time
the ship was traveling, better, faster technology had been developed.