The Universe Is Expanding Too Fast and Scientists Can’t Explain Why

Astronomers measured the local Hubble constant at 73.50 ± 0.81 km/s/Mpc, the most precise direct local value yet.

The result comes from combining multiple distance-measurement methods through the H0 Distance Network.

It remains higher than expansion rates inferred from the cosmic microwave background, sharpening the Hubble tension.

The new 1% measurement strengthens evidence that standard cosmology may be incomplete.