The Digital Press

Next-generation gravitational-wave detectors combined with electromagnetic observations could dramatically improve measurements of the universe’s expansion and dark energy properties.

Why it matters: Combining gravitational-wave signals with kilonova and gamma-ray burst data sharpens cosmological parameter estimates.

The big picture: Over 10 years, about 4,900 GW-kilonova events could be observed, tripling GW-GRB event counts for better statistics.

Stunning stat: Hubble constant precision could reach as tight as 0.034%, far surpassing current measurement accuracy.

The stakes: Improved measurements may resolve the Hubble tension and tightly constrain dark energy’s equation of state parameters.