Rainbows form when sunlight interacts with water droplets in the air. Light bends, splits into colors, reflects inside the ...

Photographers have captured breathtaking photos of "rainbow clouds" shining in the clouds. The multi-colored clouds are known as polar stratospheric clouds (PSCs) and look similar to auroras blazing ...

Rare clouds that give off bright, multi-colored light like an aurora were recently spotted at multiple locations in the Arctic. But what causes them? When you purchase through links on our site, we ...