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Is dark energy really a mystery?

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The Universe is expanding. And the expansion seems to be speeding up. To account for that acceleration, a mysterious factor, 'dark energy', is often invoked. A contrary opinion — that this factor isn't at all mysterious — is here given voice, along with counter-arguments against that view.

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Figure 1: Cosmic expansion.

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Authors and Affiliations

  1. Eugenio Bianchi and Carlo Rovelli are at the Centre de Physique Théorique de Luminy, Case 907, Luminy, Marseille F-13288, France.,

    Eugenio Bianchi & Carlo Rovelli

  2. Rocky Kolb is in the Department of Astronomy and Astrophysics, University of Chicago, Chicago, Illinois 60637, USA. rocky.kolb@uchicago.edu,

    Rocky Kolb

Authors
  1. Eugenio Bianchi
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  2. Carlo Rovelli
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  3. Rocky Kolb
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Bianchi, E., Rovelli, C. & Kolb, R. Is dark energy really a mystery?. Nature 466, 321–322 (2010). https://doi.org/10.1038/466321a

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