So, travelling at almost the speed of light will obviously have a huge drag effect. The speed of light is an incredible 299,792,458 meters per second. Unfortunately, only radio waves and other forms of electromagnetic radiation can travel exactly this fast. We all travel at exactly the speed of light through spacetime. So, if an observer at rest sees one travelling at the speed of light, its length is mathematically zero. Driving any sort of vehicle at light speed (299,792,458 meters per second—a rate also known as “c”) looks to be flat-out impossible. Since, when at rest, the light from your headlights would be launched forward from your car at the speed of light… Imagine that you are in your car 'traveling at the speed of light' and that you turn on your headlights. Only massless particles, like photons, may travel at the speed of light, and in fact massless particles may travel at no other speed. The idea of travelling at the speed of light is an attractive one for sci-fi writers. In order to travel from our solar system to other stars (and survive the trip) humans will have to travel at close to the speed of light. The good news is that cars do not travel at the speed of light. If you’re able to travel near the speed of light, the effects are much more pronounced. So, traveling at the speed of light in the conventional way is impossible. Visiting the Planets at the Speed of Light! When NASA sends spacecraft to visit Fortunately, nature offers us a few ways of cheating. If we look mathematically, the picture is far more agitated and further difficult to comprehend. As objects travel faster, they gain more mass. In Speculative Fiction, travelling at the speed of plot ensures that the characters arrive Just in Time for a plot point, whether that's in the nick of time or a You Are Too Late where the only thing you can do is mop up. The observation is actually observer-dependent. That state of motion is utterly equivalent to being at rest in an empty universe. 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