oa Journal of the Astronomical Society of South Africa - The expansion of the universe

Volume 3, Issue 3
  • ISSN :



The theory that space - or the Universe - is expanding, has been put forward within the last few years to account for the observed motions of recession of the distant spiral nebulae or galaxies. At first sight, the explanation of these motions is elegant, simple and satisfying, but it is bound up with difficulties which have not yet been fully elucidated. The acceptance of the theory, at least in the form in which it is generally given, seems to necessitate the abandonment of the time scale of the evolution of the stars which was generally accepted before the development of the theory.

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