A stroke of lighting that lasted more than 7 seconds and flashed across 829 kilometres is officially the longest ever recorded

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 from Dallas to Kansas City in October 2017. In East Coast terms, that's equivalent to the distance from New York City to Charlotte, N.C.