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Greenbelt · GreenbeltThe “Hubble tension” refers to a long-standing discrepancy in measurements of the universe’s expansion rate — specifically, between values calculated from nearby observations (like Cepheid variable stars and Type Ia supernovae) and those inferred from the early universe via the cosmic microwave background (CMB). The universe’s expansion over time. Credit: NASA/WMAP Science Team/ Art by Dana Berry Initially, the differences were small enough that…Read Article
Is the Hubble Tension Resolved? – Astronomy Now
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