For centuries, witnesses have described luminous spheres appearing during or after thunderstorms. The reported objects may hover, drift, pass near buildings and vanish quietly or with a sharp sound, ...

Ball lightning has mystified scientists and witnesses for centuries, appearing as glowing orbs during thunderstorms that seem to defy physics. While thousands of people report seeing these luminous ...

Add Yahoo as a preferred source to see more of our stories on Google. As a massive storm swept through central Alberta in early July, a couple stood on their porch watching bolts of lightning play ...

A picture portraying a UFO flying. A crack of lightning, a burst of heat, and suddenly a glowing sphere hangs in the sky like a craft from another world. Scientists now say this is not fantasy or ...

Most Americans are familiar with the story of Benjamin Franklin and his famous 18th-century experiment in which he attached a metal key to a kite during a thunderstorm to see if the lightning would ...