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Earliest known compact quasar pair poses a black hole growth puzzle

November 11, 2026 · 12:50 am 1 sources

Image: Phys.org

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  • Earliest known compact quasar pair poses a black hole growth puzzle
    Phys.org · November 11, 2026 00:50
    The oldest pair of compact quasars ever observed has been found only 900 million years after the Big Bang. Scientists say there is no theoretical explanation for how the pair of actively feeding black holes grew so massive at such an early time in the history of the universe. The pair of quasars…

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