The Universe seems to be expanding ever faster — a phenomenon generally ascribed to the influence of 'dark energy'. But might the observed acceleration be a trick of the light in an inhomogeneous Universe?
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Ellis, G. Patchy solutions. Nature 452, 159–161 (2008). https://doi.org/10.1038/452158a
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DOI: https://doi.org/10.1038/452158a
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