A lightning flash that extended 515 miles from eastern Texas to near Kansas City, Missouri, in 2017 was recognized Thursday as a new world record. The flash — dubbed a "megaflash," or a single ...

Lightning flashes streak across the sky in the German countryside. One large flash is mostly horizontal, another one is vertical. Sometimes lightning bolts can stretch hundreds of miles horizontally.

In October 2017, lightning flashed across the sky in America’s heartland. But this wasn’t your average storm. The single, enormous bolt—known as a “megaflash”—stretched across multiple states, from ...

A Penn State-led research team has unraveled the long-standing mystery of how lightning begins inside thunderclouds. Their findings offer the first quantitative, physics-based explanation for ...

An enormous, 515-mile-long flash of lightning that crossed at least three states has been named the longest in recorded history in the world. The 2017 “megaflash” stretched from eastern Texas to near ...

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, ...