Pulsars set first mass limits on supermassive black hole pairs in the early universe

November 4, 2026 · 4:30 pm 1 sources

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• Pulsars set first mass limits on supermassive black hole pairs in the early universe
  Phys.org · November 4, 2026 16:30
  So far, observations by instruments including the James Webb Space Telescope have revealed the presence of surprisingly massive black holes in the early universe. Even less than a billion years after the Big Bang, some of these bodies already weighed billions of times the mass of the sun, and to…