Researchers from the University of Waterloo have proposed a new method to measure the Hubble constant that could help resolve one of modern cosmology’s pressing puzzles: the Hubble tension.

The study published in Physical Review Letters aims to resolve the Hubble tension, a discrepancy between the value of the Hubble constant (H₀) from the local (distance ladder) method and the cosmic microwave background (CMB) method.

Phys.org spoke to the first author of the study, Dr. Alex Krolewski, a postdoctoral researcher at the University of Waterloo.