DOI: 10.3390/universe10030140 ISSN: 2218-1997

A Critical Discussion on the H0 Tension

Salvatore Capozziello, Giuseppe Sarracino, Giulia De Somma
  • General Physics and Astronomy

A critical discussion on the H0 Hubble constant tension is presented by considering both early and late-type observations. From recent precise measurements, discrepancies emerge when comparing results for some cosmological quantities obtained at different redshifts. We highlight the most relevant measurements of H0 and propose potential ideas to solve its tension. These solutions concern the exploration of new physics beyond the ΛCDM model or the evaluation of H0 by other methods. In particular, we focus on the role of the look-back time.

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