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Excerpt from www.popularmechanics.com
With the ease of starting a car, the crew of the USS Enterprise starship streaks to a new adventure in every episode of Star Trek, somehow traveling at several times the speed of light. This sci-fi mode of practical interstellar travel, which television audiences first saw in 1966, inspired Mexican physicist Miguel Alcubierre Moya to investigate the feasibility of a real method for light-speed propulsion. Decades later, he published his cutting-edge research to an astonished community of theoretical physicists. The eponymous Alcubierre warp drive hypothetically contracts the spacetime in front of a spaceship while expanding the spacetime behind it, so that the ship moves from Point A to Point B at an “arbitrarily fast” speed. By distorting spacetime—the continuum enfolding the three dimensions of space and time—an observer outside the ship’s “warp bubble” would see the ship moving faster than the speed of light, even though observers inside the craft would feel no acceleration forces.
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