Deux des meilleures méthodes pour mesurer le taux d’expansion de l’univers donnent des résultats qui ne concordent pas. Ce problème est connu sous le nom de « tension de Hubble ».
- Professor of Particle Physics and Astrophysics, Physics Department, Stanford University
Two ways of measuring how fast the universe is expanding disagree, a puzzle known as the Hubble tension. Tiny magnetic fields from the Big Bang may offer a solution.
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