Can a Cosmic Void Get Cosmology Out of its Hole?

Speaker(s)
Affiliation

Dr Indranil Banik

Institute of Cosmology and Gravitation, University of Portsmouth

Presentation Date

June 22, 2026

Poster image for talk entitled Can a Cosmic Void Get Cosmology Out of its Hole?

Overview

The standard cosmological model is facing a serious challenge. When observations of the infant Universe are combined with the physics of the Big Bang, the model predicts that the Universe today should be expanding at 67 km/s/Mpc. Yet direct observations of the nearby Universe consistently suggest a significantly faster rate of around 73 km/s/Mpc, implying a younger universe. This discrepancy, known as the Hubble crisis, has become one of the most important problems in modern cosmology.

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