Using gravitational waves as a measure of the universe's rate of expansion could solve the biggest headache in physics, the so-called "Hubble tension."

How fast is the universe actually expanding? Ripples in spacetime could finally solve 'Hubble tension'

Source: space
Source Link: https://www.space.com/astronomy/how-fast-is-the-universe-actually-expanding-ripples-in-spacetime-could-finally-solve-hubble-tension