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ScienceQuiet 7d · day 10

UC Davis mathematicians challenge dark energy theory with Einstein equations

A new study argues cosmic acceleration could emerge naturally from general relativity, potentially eliminating the need for dark energy.

newest coverage 6d agosummary written 7d ago5 pieces Google NewsNewswiresMastodon

What to know

  • UC Davis mathematicians argue the standard cosmological model (Lambda-CDM) contains a fundamental mathematical instability that makes it physically unrealistic under scrutiny.
  • They propose Einstein's original equations of general relativity can naturally produce cosmic acceleration without requiring dark energy, a mysterious force proposed in the 1990s to explain the universe's accelerating expansion.
  • The findings, published in Proceedings of the Royal Society A, challenge 30 years of dark energy theory but require peer review and further validation from the broader cosmology community.

“All the forces are in balance when a pencil is standing on end, so it is a 'solution of the equations'. But it's unstable. Any breath of air and it falls away.”

Blake Temple, UC Davis mathematics professor · Science Daily ↗

Blake Temple Distinguished Professor Emeritus of Mathematics, UC Davis; study corresponding authorUniversity of California, Davis Research institution

UC Davis mathematicians challenge dark energy theory with Einstein equations
sciencedaily.com

How it unfolded 2 developments, newest first · click a bar or a number to jump articlesposts

Peak 3 pieces in 3h at Oct 29, 7 AM; 5 pieces over 10 days (4 articles · 1 post) Oct 29, 7 AM — 3 pieces · 3 articles — Google News 2, Newswires 1Oct 29, 10 AM — quietOct 29, 1 PM — quietOct 29, 4 PM — quietOct 29, 7 PM — quietOct 29, 10 PM — 1 piece · 1 post — Mastodon 1Oct 30, 1 AM — quietOct 30, 4 AM — quietOct 30, 7 AM — quietOct 30, 10 AM — quietOct 30, 1 PM — quietOct 30, 4 PM — quietOct 30, 7 PM — quietOct 30, 10 PM — quietOct 31, 1 AM — quietOct 31, 4 AM — quietOct 31, 7 AM — quietOct 31, 10 AM — quietOct 31, 1 PM — quietOct 31, 4 PM — quietOct 31, 7 PM — quietOct 31, 10 PM — quietNov 1, 1 AM — quietNov 1, 3 AM — quietNov 1, 6 AM — quietNov 1, 9 AM — quietNov 1, 12 PM — quietNov 1, 3 PM — 1 piece · 1 article — Newswires 1Nov 1, 6 PM — quietNov 1, 9 PM — quietNov 2, 12 AM — quietNov 2, 3 AM — quietNov 2, 6 AM — quietNov 2, 9 AM — quietNov 2, 12 PM — quietNov 2, 3 PM — quietNov 2, 6 PM — quietNov 2, 9 PM — quietNov 3, 12 AM — quietNov 3, 3 AM — quietNov 3, 6 AM — quietNov 3, 9 AM — quietNov 3, 12 PM — quietNov 3, 3 PM — quietNov 3, 6 PM — quietNov 3, 9 PM — quietNov 4, 12 AM — quietNov 4, 3 AM — quietNov 4, 6 AM — quietNov 4, 9 AM — quietNov 4, 12 PM — quietNov 4, 3 PM — quietNov 4, 6 PM — quietNov 4, 9 PM — quietNov 5, 12 AM — quietNov 5, 3 AM — quietNov 5, 6 AM — quietNov 5, 9 AM — quietNov 5, 12 PM — quietNov 5, 3 PM — quietNov 5, 6 PM — quietNov 5, 9 PM — quietNov 6, 12 AM — quietNov 6, 3 AM — quietNov 6, 6 AM — quietNov 6, 9 AM — quietNov 6, 12 PM — quietNov 6, 3 PM — quietNov 6, 6 PM — quietNov 6, 9 PM — quietYesterday, 12 AM — quietYesterday, 3 AM — quietYesterday, 6 AM — quietYesterday, 9 AM — quietYesterday, 12 PM — quietYesterday, 3 PM — quietYesterday, 6 PM — quietYesterday, 9 PM — quietToday, 12 AM — quietToday, 3 AM — quietToday, 6 AM — quietToday, 9 AM — quiet 12
Oct 30Oct 31Nov 1Nov 2Nov 3Nov 4Nov 5Nov 6yesterdaynow · 11:10 AM ET
  1. 2

    Science community shares study on social platforms

    The findings circulate on Mastodon and other platforms as ScienceScholar@mastodon.social shares the UC Davis study, amplifying the challenge to the dark energy consensus among researchers.

  2. 1

    Study details mathematical flaw in standard model framework

    Science Daily publishes the full details of the UC Davis study, explaining that the researchers analyzed Einstein-Euler equations and found that conventional models treating cosmic expansion are unstable at both small and large scales. Temple uses a pencil-balancing analogy to illustrate how unstable solutions are considered non-physical.

    “Unstable solutions in physics and science are considered not physical. You'll never observe them in nature.”
    — Blake Temple
    1. 1 outlet Could Einstein's equations explain cosmic expansion without dark energy?

      first by Times of India, 6d ago

  3. background

    UC Davis team publishes mathematical challenge to dark energy model — Researchers led by Blake Temple at UC Davis publish findings in Proceedings of the Royal Society A, arguing that Friedmann spacetimes—the mathematical foundation of standard cosmic expansion models—are fundamentally unstable. They suggest cosmic acceleration could emerge naturally from Einstein's equations without requiring dark energy.