So a rocket moves by having a big explosion push it. A car moves by little tiny explosions moving things and then mechanics to get it to the wheels, how does light power itself to move? especially with how fast it moves?
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Light doesn’t move–it only looks like it moves to those of us with mass. Imagine yourself accelerated faster and faster approaching the speed of light. Lengths in your direction of travel get smaller and smaller due to length contraction (you can look at it as time stops if you prefer). If you’re going fast enough, trillions of light years could be no longer than the width of a proton.
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