Astronomers have discovered that fast-spinning pulsars emit radio waves far beyond their magnetic poles, reaching the edges of their magnetic fields. The finding challenges long-held theories and could help scientists discover more pulsars and improve gravitational wave detection.Astronomers have discovered that fast-spinning pulsars emit radio waves far beyond their magnetic poles, reaching the edges of their magnetic fields. The finding challenges long-held theories and could help scientists discover more pulsars and improve gravitational wave detection.