| Matter-antimatter Asymmetry Who1 #722584 The Big Bang should have created equal amounts of matter and antimatter in the early universe. Matter and antimatter particles are always produced as a pair and, if they come in contact, annihilate one another, leaving behind pure energy. But today, everything we see from the smallest life forms on Earth to the largest stellar objects is made almost entirely of matter. One of the greatest challenges in physics is to figure out why. |
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