A chance discovery by a NASA rover on Mars shows that the red planet has a form of lightning, which researchers had suspected for decades but never seen.

That's the new world record for longest lightning strike — as certified Wednesday by the World Meteorological Organization and based on Georgia-led study.

A weather expert weighs in on tips for avoiding direct and indirect impacts of lightning.

Lightning strikes may have supplied a key ingredient that allowed life to emerge on early Earth, according to a new study of "fossilized" lightning.

Six people were injured Saturday when lightning struck a 60-foot pine at the Tour Championship where they were taking cover from rain and showered them...