July 25

Physicists at the Hong Kong University of Science and Technology reaffirmed Einstein’s position that nothing can travel faster than the speed of light — thus squashing hopes that time travel and other sci-fi temporal concepts are not possible. The physicists studied the travel of a single photon in a vacuum (like that of space). So humankind’s dreams of gallivanting around the cosmos, in some warp-speed spacecraft, are just not going to happen. Well, at least not in our present universe. But that’s another story…

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Image courtesy of Discovery News

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