Perseids Fade But a Centuries-Old Cosmic Mystery Still Burns Bright

On August fourteenth, as the Perseid meteor shower winds down from its peak, skywatchers across the globe still gather in dark fields and hilltops, hoping to catch the last bright streaks of cosmic debris burning up in the atmosphere. But scattered among the excited chatter of these late season Perseid gazers is a strange and stubbornly unexplained report that has puzzled scientists for centuries