“We call it megaflash lightning and we’re just now figuring out the mechanics of how and why it occurs,” study co-author and Arizona State University climatologist Randy Cerveny said in a statement.

Lightning is a familiar sight in stormy skies, but a new report has revealed just how far some bolts can travel — in one case, more than 500 miles. That astonishing bolt sparked to life in eastern ...

A massive bolt of lightning that flashed across the sky in Texas in 2017 has captured a new world record. Pictured, a separate lightning bolts shoots over Highway 360 near Euless, Texas on Friday, ...

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.

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 ...