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JWST finds early galaxies may be 4 times more massive than thought
Astronomers using the James Webb Space Telescope have identified a previously unseen population of small, faint stars within massive early‑universe galaxies.
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Astronomers using the James Webb Space Telescope have identified a previously unseen population of small, faint stars within massive early‑universe galaxies. This hidden component could increase the estimated mass of those galaxies by three to four times compared with earlier calculations. The result adds difficulty to existing explanations for how such large, mature galaxies formed shortly after the Big Bang.
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