Why is there a ‘disaster’ in cosmology?


Paul M. Sutter is an astrophysicist at SUNY Stony Brook and the Flatiron Institute, host of “Ask a Spaceman” and “Space Radio,” and writer of “How to Die in Space.” Sutter contributed this text to Space.com’s Expert Voices: Op-Ed & Insights.

Beginning in 2014, measurements of the Hubble constant — the present-day growth price of the universe — started to disagree. Measurements taken from the distant universe have been about 10% off from measurements taken from the close by universe. While that does not sound like so much (and it is not, contemplating the appreciable feats of science wanted to make these measurements within the first place), the uncertainties in these measurements have been solely about 2%.

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