Black holes may split in two if they spin fast enough
SPACE · 29 Oct 2026

Black holes may split in two if they spin fast enough

New research suggests that black holes may be able to do something scientists have not commonly considered: split in two. For years, the accepted picture has been that when two black holes collide, they merge into a more massive one. This study proposes the reverse may also occur, but only under extreme spin conditions.

Why does this matter? Beyond the cosmic curiosity, it challenges assumptions about how black holes form, grow and interact. Theories like these are how our models of the universe get refined, and that refinement shapes future observations and the instruments built to make them.

For professionals in science, astrophysics, data analysis and science communication, stories like this are a reminder that foundational assumptions can still be tested. Curiosity-driven research often reshapes an entire field.

What part of this result do you find most surprising?

Key points

  1. What happened Scientists have long known that colliding black holes merge into a more massive one. New research suggests the reverse may happen too.
  2. The key detail The split appears possible only when black holes spin at extreme speeds. Not every black hole is expected to divide this way.
  3. Why it matters It challenges long-held ideas about how black holes form and grow, and could reshape how scientists model the universe.
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