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Cosmo Novice
Nov17-11, 07:09 AM
P: 366
I think the original question has been answered:

No amount of fuel or the energy we derive from it can accelerate an object with rest mass to C. As you approach C you need more and more energy to keep increasing speed until eventually you would need infinite energy to accelerate any faster (The energy requirements at the higher end of the scale would be horrendous)

Lets also remember that if you get to even 0.1c, then impacting with stellar dust would release huge amounts of energy akin to nuclear explosions!

I would disregard talks of exotic matter and Alcubierre "warp" drives and deal with proven/tested technologies for a greater understanding.