This week, a paper came out that takes the work of twentieth-century physicists on subatomic interactions and delves into the strange and nascent study of antimatter. Published by Mostafa Ahmadi and his colleagues in the journal Nature, the study shows that antihydrogen — the antimatter counterpart of hydrogen — also produces the standard 21-cm (8.3-inch) emission wavelength. That is half the answer to life, the Universe, and everything as predicted by Douglas Adams‘ Hitchhikers’ Guide to the Galaxy…which is 42.

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