Early galaxies had surprising oxygen levels

3dnews.ru (Russian)

Early galaxies were surprisingly rich in oxygen, challenging previous models of the universe's evolution. The James Webb Space Telescope observed a galaxy 400 million years after the Big Bang containing significant oxygen, suggesting faster star evolution and chemical enrichment than expected. This discovery raises questions about the possibility of early life in the universe and the potential for extraterrestrial civilizations to have had a head start.


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