Visible light travels in electromagnetic waves, which we see as the colors of the rainbow. Different colors have different wavelengths of light. Violet and blue have the shortest wavelengths, whereas ...

Droneview7 video shows a thick, orange haze over San Francisco around 10 a.m. Wednesday. Coit Tower appears shrouded in smoke, the top of Salesforce Tower disappears into the haze and you can't see ...

Do you remember these apocalyptic scenes? Tuesday marks five years since the sky over the Bay Area turned orange. Several wildfires were burning across Northern California at the time, filling the air ...

“Red sky at night, sailor’s delight. Red sky in morning, sailor’s warning," as the old saying goes. But what about glowing, hazy red skies at both sunrise and sunset? They could be a sign of poor air ...

It’s a common myth that the sea reflects its colour onto the sky. In truth, it’s the other way around. The ocean looks blue ...