Expanding space : the root of all evil?

Matthew J. Francis, Luke A. Barnes, J. Berian James, Geraint F. Lewis

Research output: Contribution to journalArticlepeer-review

Abstract

While it remains the staple of virtually all cosmological teaching, the concept of expanding space in explaining the increasing separation of galaxies has recently come under fire as a dangerous idea whose application leads to the development of confusion and the establishment of misconceptions. In this paper we develop a notion of expanding space that is completely valid as a framework for the description of the evolution of the universe and whose application allows an intuitive understanding of the influence of universal expansion. We also demonstrate how arguments against the concept in general have failed thus far, as they imbue expanding space with physical properties not consistent with the expectations of general relativity.
Original languageEnglish
Pages (from-to)95-102
Number of pages8
JournalAstronomical Society of Australia. Publications
Volume24
Issue number2
DOIs
Publication statusPublished - 2007

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