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Galaxies 2018, 6(4), 132;

The Discovery of the Expansion of the Universe

Oslo Metropolitan University, Faculty of Technology, Art and Design, PO Box 4 St. Olavs Plass, NO-0130 Oslo, Norway
Received: 2 November 2018 / Revised: 27 November 2018 / Accepted: 29 November 2018 / Published: 3 December 2018
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Alexander Friedmann, Carl Wilhelm Wirtz, Vesto Slipher, Knut E. Lundmark, Willem de Sitter, Georges H. Lemaître, and Edwin Hubble all contributed to the discovery of the expansion of the universe. If only two persons are to be ranked as the most important ones for the general acceptance of the expansion of the universe, the historical evidence points at Lemaître and Hubble, and the proper answer to the question, “Who discovered the expansion of the universe?”, is Georges H. Lemaître. View Full-Text
Keywords: cosmology history; expansion of the universe; Lemaitre; Hubble cosmology history; expansion of the universe; Lemaitre; Hubble

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Grøn, Ø. The Discovery of the Expansion of the Universe. Galaxies 2018, 6, 132.

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