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The “little red dots” discovered by the James Webb Space Telescope (JWST) pose a cosmic conundrum. It seems that these compact galaxies are either stuffed impossibly full of stars or have black holes that are far too large. Either way, it presents problems for our views of galactic evolution.
When JWST started peering into the early universe, it found hundreds of tiny red galaxies everywhere it looked. Their existence alone was surprising, but as researchers dig into the data, they are finding that the…