Astronomers measure dark matter 'haloes' around hundreds of ancient black holes for 1st time

Studying the mysterious form of matter around ancient quasar galaxies could have profound implications for our understanding of how the cosmos evolved.

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Maunakea ,Hawaii ,United States ,Tokyo ,Japan ,Verac Rubin ,Nobunari Kashikawa ,Subaru ,University Of Tokyo Department Astronomy ,Subaru Telescope ,