Researchstandard sirensobservational cosmologyhubble constant
Dark Sirens Yield Intermediate Hubble Constant Measurement
|
7.2
A team using LIGO/Virgo/KAGRA data combined seventeen well-localized gravitational-wave "dark sirens" with deep galaxy surveys and machine learning to estimate the Hubble constant at 69.9 km/s/Mpc. The independent measurement sits between cosmic-microwave-background values (~67 km/s/Mpc) and local supernova estimates (~73 km/s/Mpc), offering a distinct observational probe that may help constrain the ongoing H0 tension.
Scoring Rationale
Independent LIGO/Virgo/KAGRA dark-siren measurement increases confidence in intermediate H0 but remaining uncertainties prevent definitive resolution.
Practice interview problems based on real data
1,500+ SQL & Python problems across 15 industry datasets — the exact type of data you work with.
Try 250 free problems
