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Loading contentThe merger of two neutron stars — a gravitational-wave source that also lights up across the electromagnetic spectrum, producing a short gamma-ray burst and a kilonova. The 2017 event GW170817 was seen in both gravitational waves and light, founding multi-messenger astronomy with gravitational waves.
Facts on this topic will be cited from these primary and reference sources.
Direct detections of gravitational waves from compact-object mergers.