It was a big year. Fermilab discovered possible evidence of new physics with the muon G-2 experiment. Physicists created a time crystal, a new phase of matter that appears to violate one of nature’s most cherished laws. And we got a glimpse of an enormous pair of bubbles towering over the Milky Way.
Emily Buder/Quanta Magazine; Myriam Wares for Quanta Magazine
Andrew Testa for Quanta Magazine
University College London physicist Hiranya Peiris explains how the multiverse can be tested.
Katherine Taylor for Quanta Magazine
MIT cosmologist Alan Guth, 67, discusses why two-headed cows are an important problem in an infinite multiverse.
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