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Supermassive black holes have masses of more than a million suns – but their growth has slowed as the universe has aged

  • Written by Fan Zou, Graduate Student in Astronomy and Astrophysics, Penn State
imageMost of the blue points in this sky survey image are accreting supermassive black holes emitting strong X-rays.Fan Zou (Penn State) and the XMM-SERVS Collaboration

Black holes are remarkable astronomical objects with gravity so strong that nothing, not even light, can escape them. The most gigantic ones, known as “supermassive” black...

Read more: Supermassive black holes have masses of more than a million suns – but their growth has slowed as...

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