https://doi.org/10.1140/epjp/s13360-023-04591-0
Regular Article
Hubble tension
Department of Physics and Leinweber Center for Theoretical Physics, University of Michigan, 450 Church St, 48103, Ann Arbor, MI, USA
Received:
8
May
2023
Accepted:
12
October
2023
Published online:
10
November
2023
We discuss Hubble tension—the disagreement in two major cosmological measurements of the expansion rate of the universe (the Hubble constant), and the foremost development in cosmology over the past several years. We describe the measurements of the Hubble constant from the cosmic microwave background anisotropies and those that use the distance ladder and type Ia supernovae. We briefly review the status of theoretical explanations for the Hubble tension. We finally discuss why the arguably simplest explanation—sample variance in local measurements—cannot explain the Hubble tension.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2023. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
