Unified Measure of Cosmic Expansion Deepens Hubble Mystery
A study in Astronomy & Astrophysics presents the most precise combined value for the Hubble constant, about 73.5 km/s/Mpc (≈45.7 miles/s/Mpc), derived from a new distance-network framework that unifies multiple distance indicators. While it clarifies the measurement, the result reinforces the Hubble tension and suggests that cosmology may require new physics or revisions to current models.