The arrow of time

Research output: Contribution to journalReview articlepeer-review

2 Scopus citations


In daily life the world shows a marked distinction between past and future, but (with a minor exception) the laws of physics are symmetric in time. Gerald Whitrow was among the first to realize that the resolution of this paradox lay with cosmology and the initial conditions at the birth of the universe. But this simple conclusion conceals some deep subtleties that took a new twist with the emergence of quantum cosmology and the inflationary universe scenario. The issue has still not been fully resolved, and remains one of the great outstanding scientific mysteries.

Original languageEnglish (US)
Pages (from-to)1.26-1.29
JournalAstronomy and Geophysics
Issue number1
StatePublished - Feb 2005
Externally publishedYes

ASJC Scopus subject areas

  • Astronomy and Astrophysics
  • Geophysics
  • Geochemistry and Petrology


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