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Los Alamos National Laboratory: High Altitude Water Cherenkov Observatory Tests Speed of Light
March 31, 2020
LOS ALAMOS, New Mexico, March 31 -- The U.S. Department of Energy's Los Alamos National Laboratory issued the following news release:

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- Ultra-high energy gamma rays from the far reaches of the galaxy provide powerful proof that the predictions of relativity, including the constant speed of light, hold to the highest energy extremes yet probed

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New measurements confirm, to the highest energies yet explored, that the laws of physi . . .

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