Everyone knows that relativity plays hell with time, and that it can do a number on space, but what about mass? Why do objects get more or less mass depending on their relative speed? We’re going to ...

A little-studied mite native to California, the Paratarsotomus macropalpis, has the "fastest relative speed" of any animal on the planet. "The mite runs at a relative speed of … nearly 200 body ...

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