A stunning natural spectacle recently graced the skies above Hong Kong, captivating onlookers with its surreal beauty. Rainbow-colored clouds in the shape of a “stairway to heaven” were spotted over ...

GRAND RAPIDS, Mich. (WOOD) — It can stop you in your tracks if you spot it — a rare upside-down rainbow! This kind of rainbow formation is called a circumzenithal arc (CZA), and technically, it isn’t ...

Rainbows form when sunlight interacts with water droplets in the air. Light bends, splits into colors, reflects inside the droplets, and then bends again as it exits, creating the visible spectrum.