JWST Finds Early Galaxies Were Already Seeding the Universe with Heavy Elements
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According to data from the James Webb space telescope, galaxies have already distributed heavy elements at the beginning of reionization, which could solve another mystery.
New Webb data hints at huge problem in finding the universe's first stars
Before the advent of the James Webb Space Telescope, scientists thought the early universe contained no heavy elements and expected to see mainly hydrogen and helium. With Webb came the surprising discovery of many galaxies just a few hundred million years after the Big Bang. But during the same era elements heavier than hydrogen and […]
Already a few hundred million years after the Big Bang, the gas was enriched with carbon, oxygen and silicon around some bright galaxies. Spectra of the James Webb Space Telescope (JWST) show that this material moved relative to the galaxies. The signatures speak for early material cycles and are compatible with outflows, but can not be clearly only through outflowing gas [...] The article JWST shows how early galaxies distributed heavy elements…
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