The Crab Pulsar's Puzzling Emissions Finally Explained.

Pulsars are rapidly rotating neutron stars. The Crab Pulsar, an often studied supernova remnant, is known for its unusual radio emission patterns. New researchs says it's because of a "tug-of-war" between magnetism and gravity. Gravity acts as a focusing lens and plasma in the magnetosphere acts as a defocusing lens.