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    Dark stars could help solve three pressing puzzles of the high-redshift universe

    January 9, 2026, Categories  Astronomy/Space

    Dark stars could help solve three pressing puzzles of the high-redshift universe
    UHZ1, a record breaking galaxy 13.2 billion light-years away, seen when the universe was only 3% of its current age. UHZ1 is puzzling in view of it harboring a supermassive black hole that could not have possibly been seeded even by regular stars, in view of its mass and very little time for the BH to grow. As such, UHZ1 is believed to be evidence for supermassive stars that—upon collapse—generate the supermassive black hole powering the quasar at its center. In this study, the authors show how UHZ1 could harbor a supermassive black hole seeded by the collapse of a dark star. The mechanisms identified by the authors are not restricted to UHZ1—it provides a pathway for explaining over massive black hole galaxies, of which UHZ1 is a prominent example...
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