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Universe’s Lifespan Slashed by New Hawking Radiation Calculations

Radboud University researchers reveal white dwarfs will evaporate in 10^78 years, revising the universe's projected end from 10^1100 years.

A spiral-shaped galaxy called "Hidden Galaxy", also known as IC 342 or Cadwell 5, captured by Euclid telescope, designed and built by European Space Agency (ESA) to explore dark matter and dark energy.
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Overview

  • New research shows that Hawking-like radiation applies to all massive objects, not just black holes, causing universal evaporation over time.
  • The study calculates that white dwarfs, the universe's most persistent celestial bodies, will decay in 10^78 years, drastically revising previous estimates of 10^1100 years.
  • Neutron stars and stellar black holes, despite differing gravitational fields, are predicted to evaporate on the same timescale of 10^67 years due to density-based decay rates.
  • The findings unify cosmic lifecycles by demonstrating that an object's evaporation time depends solely on its density, reshaping long-term cosmic forecasts.
  • Published in the Journal of Cosmology and Astroparticle Physics, the study builds on Stephen Hawking's 1975 theory, expanding its implications to include all gravitating objects.