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buy sumycin Wormholes, on the other hand, are a prediction of Albert Einstein’s general theory of relativity, which describes how massive objects warp space and time, or spacetime, to create the effects we call gravity. If an object is massive enough, it can create a funnellike hole in spacetime so steep that not even light can escape from it???a black hole. In principle, two widely separated black holes can connect like back-to-back trumpet horns to make a shortcut through spacetime called a wormhole.