Planck star

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). [from 21st c.]
    • 2015, Simon Carnell and Erica Segre, translating Carlo Rovelli, Seven Brief Lessons on Physics, Penguin 2016, p. 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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