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JWST just made the "Crisis in Cosmology" WORSE16:36

JWST just made the "Crisis in Cosmology" WORSE

1.3M views • 3 years ago
Dr. Becky
Astrophysicist Dr. Becky explains the Hubble tension, the disagreement between expansion-rate measurements from the cosmic microwave background and the distance ladder, and what early JWST Cepheid observations add.