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New Data Suggests Dark Energy May Be Weakening, Challenging Cosmological Models

Findings from the DESI collaboration raise questions about the Lambda-CDM model and suggest dark energy might evolve over time.

  • The DESI collaboration's analysis of 15 million galaxies indicates that dark energy, previously thought to be constant, may be weakening over the past 2.5 billion years.
  • This potential variability in dark energy challenges the Lambda-CDM model, the current standard framework for understanding the universe's structure and evolution.
  • Scientists are exploring alternative theories, including the possibility of new particles or modifications to Einstein's theory of general relativity, to explain the findings.
  • Future observations from advanced telescopes like Euclid, Nancy Grace Roman, and Vera Rubin are expected to provide more clarity within the next five years.
  • If confirmed, this discovery could reshape our understanding of the universe and its ultimate fate, with implications for scenarios like a slowing expansion or even a 'Big Crunch.'
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