Black holes have helped quench star formation in the early universe

Black holes have helped quench star formation in the early universe

While some galaxies continue to form stars, others are disappearing and living more passively. What caused these galaxies to stop forming stars at such a young age is not known, not least because they are so distant and faint that they go unnoticed. Hundreds of galaxies are visible in this area of ​​the sky, called …

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