Talk about a bolt from the blue. Scientists July 31 announced the discovery of the world's longest lightning flash ever detected – a whopping 515-mile-long bolt that blasted across central U.S. skies ...

Scientists have revealed that a lightning bolt that occurred over a swath of the southern U.S. in 2017 was the single longest lightning strike ever recorded. At 515 miles long, the flash was the ...

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 ...