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Nature 391, 120-121 (8 January 1998) | doi:10.1038/34283

Cosmology:  An unprincipled Universe?

Peter Coles1

One of the central tenets of cosmological orthodoxy is the Cosmological Principle, which states that, in a broad-brush sense, the Universe is the same in every place and in every direction. This assumption has enabled cosmologists to obtain relatively simple solutions of Einstein's General Theory of Relativity that describe the dynamical behaviour of the Universe as a whole.

  1. Peter Coles is in the Astronomy Unit, Queen Mary and Westfield College, University of London, London E1 4NS , UK.
    e-mail: Email: p.coles@qmw.ac.uk