Fireflies need darkness to communicate. Males perform an airborne dance while flashing their abdominal lanterns in a pattern ...

Altostratus: Gray or blue-gray clouds that often blanket the sky and obscure the sun ... including thunderstorms, lightning, hail, and even tornadoes. So next time you’re out walking, driving ...

Afternoon thunderstorms will pepper the Sierra this weekend. Meanwhile the Valley and Foothills will stay sunny and warm.

Ice in a cloud may be key in the development of ... Don't be fooled by sunshine or blue sky! • Most lightning deaths and injuries in the United States occur during the summer months, when ...

The latest video begins with a view of a pitch-black night sky before flashes of light appear that reveal the patches of white clouds on the screen. Streaks of lightning ... as a blue jet; these ...

There are 10 main types of clouds. There's the Cumulus cloud, otherwise know as the Simpsons' cloud. "The cartoon cloud that forms on a sunny day. The fair weather cloud. It's like the generic one, ...

They're also the months when 75% of the annual deaths from lightning strikes — however rare — happen. People have been trying to figure out why the sky breaks out into a scary light-and-sound ...

But the behavior of these lab-based cloud particles mimics the behavior of cloud particles in massive sky-sweeping clouds, only in miniature. “Of course, we don’t grow them at quite the same scale you ...