Planck star

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English

Noun

Planck star (plural Planck stars)

  1. (astrophysics) A hypothetical astronomical object whose energy is around the Planck density (5.155 × 10⁹⁶ kg/m³).
    • 2015, Carlo Rovelli, translated by Simon Carnell and Erica Segre, Seven Brief Lessons on Physics, Penguin, published 2016, page 44:
      The entire matter of the sun condensed into the space of an atom: a Planck star should be constituted by this extreme state of matter.

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