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The First Supernovae Flooded the Early Universe With Water
Water is made of hydrogen and oxygen: H2O. The H was formed during the Big Bang, but it took the first stars in the Universe to create the O, manufacturing it in their cores before they detonated as supernovae. In a new study, researchers suggest that those first supernovae released water into the Universe within the first 100-200 million years after the Big Bang, concentrating it into dense molecular clouds. Water needed for life was there, right at the beginning.
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