If a single number describes the history and fate of the Universe, it’s the Hubble constant, H0, which quantifies the speed at which galaxies move away from us. But researchers measuring H0find different values depending on the method they use. Now, a team at the University of New Mexico and the University of California, Davis, proposes a way to resolve this “Hubble tension” through a rescaling of the relevant distances and timescales [1]. This approach lends support to beyond-standard-model theories that might include an exotic form of dark matter.
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