Universe Shape: Flat or Hyperbolic? Cosmologists Weigh In

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    Flat Hyperbolic
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SUMMARY

The contemporary consensus among cosmologists is that the universe is flat and Euclidean, supported by Wilkinson Microwave Anisotropy Probe (WMAP) measurements indicating a 0.4% margin of error. Within the Friedmann–Lemaître–Robertson–Walker (FLRW) model, the infinite flat model is the most favored shape. However, Einstein's relativity equations suggest a hyperbolic nature, which implies a negative curvature and a hyperbolic geometry for spacetime. This discussion highlights the complexities of universe geometry, including the implications of flat versus hyperbolic models on the universe's topology and curvature.

PREREQUISITES
  • Understanding of Friedmann–Lemaître–Robertson–Walker (FLRW) model
  • Familiarity with Wilkinson Microwave Anisotropy Probe (WMAP) measurements
  • Knowledge of Einstein's equations of general relativity
  • Basic concepts of geometry, including flat and hyperbolic geometries
NEXT STEPS
  • Research the implications of the Friedmann–Lemaître–Robertson–Walker (FLRW) model on cosmology
  • Explore the mathematical foundations of hyperbolic geometry in relation to general relativity
  • Study the latest advancements in cosmological measurements and their impact on universe shape theories
  • Investigate the relationship between dark energy, dark matter, and the curvature of the universe
USEFUL FOR

Cosmologists, astrophysicists, and students of physics interested in the geometric properties of the universe and the implications of different cosmological models.

  • #31
Thanks as well to Naty that thread was entertaining to say the least.

Nothing better than when the 'experts' disagree and try to figure out what the other means...
unless of course, they reach a consensus...but differing viewpoints really make one realize more of the aspects to GR and cosmology.
 
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  • #32
Naty1 said:
You are redeemed!
While I always enjoy your contagious enthusiasm and camaraderie Naty, it was unfortunately not I who linked that paper :frown:
 
  • #33
While I always enjoy your contagious enthusiasm and camaraderie Naty, it was unfortunately not I who linked that paper

DUDE! U got to grab kudos whenever they flop in your direction!
 
  • #34
Naty1 said:
DUDE! U got to grab kudos whenever they flop in your direction!
I'll keep that in mind for the future haha <3
 

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