Re: Time travel - Speed of light
Astronauts that travel around the Earth in Orbit have been known to loose body mass becuase of being in zero gravity, body starts to loose muscle............
When you dont use it You loose it........:)
Only thing that can travel at the speed of light is....................LIGHT.......:D
Highly accelarated space vehicle acually mimicks Gravitational pull inside it, so at that speed, space travel will at least not cause that problem.