What is the constituent material of the universe?

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SUMMARY

The universe consists of approximately 5% baryonic matter, 25% non-baryonic matter, and 70% dark energy. Current theories suggest that dark energy is explained by a small cosmological constant in Einstein's general relativity, although this constant presents significant discrepancies, being 50-60 orders of magnitude smaller than theoretical expectations. While various hypotheses exist regarding non-baryonic matter, none have been conclusively verified through observation. For further reading, the article hep-ph/0312013 from arXiv provides insights into dark energy and its implications.

PREREQUISITES
  • Understanding of baryonic and non-baryonic matter
  • Familiarity with dark energy concepts
  • Basic knowledge of Einstein's general relativity
  • Access to scientific literature databases like arXiv
NEXT STEPS
  • Research the implications of the cosmological constant in Einstein's general relativity
  • Explore the latest findings on dark energy from arXiv articles
  • Investigate the nature and properties of non-baryonic matter
  • Study current theories and models explaining the universe's composition
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Astronomers, physicists, and anyone interested in cosmology and the fundamental components of the universe will benefit from this discussion.

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What is the constituent material of the universe? Is the material all exists on tangiable?
please any answers will aid me thanks
 
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Current estimates are that the universe is about 5% baryonic (ordinary) matter, about 25% non-baryonic matter, and 70% dark energy. Physicist and astronomers have proposed various theories to describe the two latter components, but nothing has yet been verified by observation.
 
What is dark energy? do you have any links that would be able to help me out in understanding it?
thanks
 
For the latest on non-baryonic (dark) matter, hep-ph/0312013 from arXiv (use google to get arXiv). In this article are references to dark energy as well. The most favored explanation for dark energy is the presence of a small cosmological constant in Einstein's general relativity. However, there are some serious problems relating to the size of the constant. For dark energy, it is about 50-60 orders of magnitude smaller than other theory expects.
 

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