Aug 31, 2014
Posted by Seb in category: time travel
One trope in time travel science fiction is slightly plausible, if physically impossible—traveling faster than the speed of light. The crew of the U.S.S. Enterprise did this in Star Trek IV: The Voyage Home, by using the sun’s gravitational pull to accelerate their spaceship to super-light speed. If it were possible to travel faster than light (Einstein calculated it would take an infinite amount of power), it is theoretically possible for signals to be sent back in time; it’s questionable if the same method could work with people.