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New Method Boosts Hubble Constant Accuracy Tenfold

11/5/2025

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Summary

Story summary

A new pixelated modeling method improves the measurement of the Hubble constant (H0) to ±0.8 km/s/Mpc, a tenfold increase in accuracy.
The approach leverages gravitational lensing effects from the galaxy cluster MACS J0138.0-2155.
Other studies indicate that dark energy may evolve over time, which could reshape our understanding of cosmic expansion.
Future observations from advanced telescopes may confirm these findings.

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Story summary

A new pixelated modeling method improves the measurement of the Hubble constant (H0) to ±0.8 km/s/Mpc, a tenfold increase in accuracy.
The approach leverages gravitational lensing effects from the galaxy cluster MACS J0138.0-2155.
Other studies indicate that dark energy may evolve over time, which could reshape our understanding of cosmic expansion.
Future observations from advanced telescopes may confirm these findings.