The Alpha Centauri System of stars at 4,03 years-light far from us. That is nothing for Tachyons. For astral travelers moving at a speed so faster than that of Light, moving at which they are in rest. Tachyons are in rest traveling at the Light's Speed Limit or «C=300.000 Kms per second». So, Alpha Centauri is just over there, at one step for the Mankind, why, then, waste our time and our lifes traveling to Mars? Don't you think so?