The view of the ancient universe revealed by the James Webb Space Telescope (JWST), the most powerful observatory ever launched, is so unexpected that scientists think it might pose a fundamental challenge to our basic understanding of the cosmos, reports a new study.
The telescope has glimpsed inexplicably massive galaxies that formed some 500 to 700 million years after the Big Bang, leaving researchers baffled about how such galactic behemoths managed to emerge so early in cosmic history.
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