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Updated: Sep 30, 2025

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New futures for cosmological models.

Leonardo Fernández-Jambrina1, Ruth Lazkoz2

  • 1Matemática e Informática Aplicadas, Avenida de la Memoria 4, 28040-Madrid, Spain.

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|March 14, 2022
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Summary
This summary is machine-generated.

Our universe may face new fates beyond eternal expansion or contraction. Researchers explore potential singular ends like the big rip and non-singular evolutions, analyzing the scale factor for cosmic doom scenarios.

Keywords:
cosmologyrelativitysingularity

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Area of Science:

  • Cosmology
  • Astrophysics
  • Theoretical Physics

Background:

  • The discovery of the Universe's accelerated expansion suggests novel cosmic doom scenarios.
  • Traditional end-of-universe models include eternal expansion and a final contraction.

Purpose of the Study:

  • To review potential future scenarios for our space-time.
  • To investigate singular and non-singular fates of the Universe.
  • To analyze the implications of extended space-time beyond singularities.

Main Methods:

  • Utilizing generalized power expansions of the Universe's scale factor.
  • Employing asymptotic expansions of the scale factor.
  • Reviewing existing cosmological models and theoretical frameworks.

Main Results:

  • Identified new possible singular fates, such as sudden singularities and the big rip.
  • Described non-singular evolutionary paths for the Universe.
  • Found that some singular fates allow for space-time extension beyond the singularity.

Conclusions:

  • The future of the Universe is more complex than previously thought, with diverse possible end-states.
  • Mathematical cosmology provides tools to explore these varied cosmic destinies.
  • Further research into scale factor expansions can refine our understanding of cosmic evolution.