A jaw-dropping 515-mile lightning bolt lit up the skies from Texas to Kansas City, smashing previous records and reshaping our understanding of extreme weather. Thanks to advanced satellite tech, scientists like Randy Cerveny and Michael Peterson are uncovering the mechanics of "megaflash" lightning—rare,

Lightning struck and set a world record. The flash occurred in 2017 and spanned from eastern Texas to near west-central Missouri — a distance of 515 miles, according to Smithsonian Magazine. Eight years later, scientists have recognized the lightning flash as the longest ever documented.