The JWST and the Mystery of Massive Quenched Galaxies in the Early Universe
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With its ability to observe the red-shifted light from early galaxies, the JWST has revealed some surprises. Many massive galaxies in the early Universe had ceased star formation and were already quenched hundreds of millions of years sooner than thought. By examining their morphology, new research shows that mergers that were previously hidden from view are responsible.
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