The universe is 13.8 billion years old. Webb is finding galaxies that look like they’ve been quietly forming stars for billions of years inside a cosmos that was, at the time of observation, only a few hundred million years old

AI Summary

Webb Space Telescope has discovered early galaxies that appear to have been forming stars for billions of years, even though the universe was only a few hundred million years old at the time of observation. These findings are challenging astronomers to reassess their understanding of cosmic history.