Scientists have finally explained the unusual radio emission patterns of the Crab Pulsar, one of astronomy's most studied neutron stars. The rapidly rotating remnant of a supernova has long puzzled researchers with its distinctive radio signals that differ from typical pulsar behavior.
New research reveals the emissions result from a "tug-of-war" between two competing forces acting on the pulsar's radio waves. Gravity functions as a focusing lens that concentrates the radio signals, while plasma within the pulsar's magnetosphere acts as a defocusing lens that disperses them.