Cosmological parameter discrepancies between early-universe (CMB) and late-universe (SNe Ia, galaxy clustering, lensing) probes. 5σ H₀ tension open puzzle; new physics vs systematics.
Cosmological parameter discrepancies between early-universe (CMB) and late-universe (SNe Ia, galaxy clustering, lensing) probes. 5σ H₀ tension open puzzle; new physics vs systematics.