Joint GW + gamma-ray + optical + radio + X-ray observation of BNS merger across 70 telescopes; verified neutron-star-merger origin of short-GRBs and r-process kilonovae; cosmology from H0 measurement.
Joint GW + gamma-ray + optical + radio + X-ray observation of BNS merger across 70 telescopes; verified neutron-star-merger origin of short-GRBs and r-process kilonovae; cosmology from H0 measurement.