[Corn-dog]

Digit, just to inform you, they have already invented time travel, but to the future. Most likely time trave to the past is impossible, this is because events that have already happend are dead time. You can really only trave to the present.

They found out that going at supersonic speeds clocks go off in time. They got a copy of the atomic clock, took it up in a super sonic jet, went really fast for a couple of hours, and when the jet came back the two clocks were off. The one in the plane was faster then the one that stayed stationary.

Its a proven theory in physics. The speed is porportional to the time. So in esence if you went 10,000 time faster you would go 10,000 times more in the future.

With this being true, at the speed of light, you would be doing time travel, That is the speed you are going you are not really ageing but you are in space for long time, making it able to travel great distance.