The Cosmological Constant Problem

  title={The Cosmological Constant Problem},
  author={Steven Weinberg},
  journal={Reviews of Modern Physics},
  • S. Weinberg
  • Published 1989
  • Physics
  • Reviews of Modern Physics
Astronomical observations indicate that the cosmological constant is many orders of magnitude smaller than estimated in modern theories of elementary particles. After a brief review of the history of this problem, five different approaches to its solution are described. 
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