There was an old discussion here about traveling at the speed of light and two objects traveling at the same speed collided head n what would happen. Which basically the discussion left at there wasn't anything that can go faster than the speed of light when the discussion asked what would happen if the two objects could go faster than the speed of light. Something being able to go faster than the speed of light for years was "known" to be impossible is now in serious doubt, read: http://www.techtimes.com/articles/4...tally-discovered-faster-than-light-travel.htm Space travel as we know it today would take far too long for travelers to go to the next closest galaxy, they would probably be dead before they got there unless we perfected Cryogenic sleep and could successfully wake them up alive when they got to wherever they were going, but this itself presents a problem in that they wouldn't be able to report what they found till they got back to earth and that could be thousands of years later. Traveling at the speed of light presents another problem in that the universe is littered with rocks, some very large, all just whizzing around aimlessly, so if a craft moving along at the speed of light hits any object, which would be undetected because radar couldn't reach out past the craft because of the speed of the craft, so the craft would hit the object and be instantly destroyed, even a small speck could have the same effect of destroying the craft. So let's now assume that a spacecraft is made that uses the EM Drive engine as indicated in the above website, and that craft can travel at say 1000 times the speed of light, would that craft be able to penetrate large objects, say the size of the earth, (though size wouldn't matter in this case), so fast that not one atom would be disturbed in either the craft or the object it hit and thus neither be destroyed?