Earliest known compact quasar pair poses a black hole growth puzzle
Summary
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 has been given the Hawaiian nickname Nāpōwawāʻenakaulua.
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Earliest known compact quasar pair poses a black hole growth puzzle
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....
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