Our eyes deceive us when lightning strikes like a giant spark cracking the sky in two. That giant spark is only as big around as a golf ball. Like everything else in nature, it happens for a reason.

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 ...

LOUISVILLE, Ky. — Lightning is one of the most powerful and dangerous natural phenomena on Earth. A giant spark of static electricity, lightning serves as a type of “neutralizer” for electric charges ...

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 ...

The collision of two lightning-bolts-in-the-making spawned an exceedingly brief but extremely energetic flash of gamma rays. This first-of-its-kind observation may help explain an origin of some of ...