Answer: The principal indication given by a double bow is that the raindrops that are refracting and reflecting sunlight are of medium to large size, rather than being very small or tiny droplets.

The higher your vantage point, the more likely you’ll see more of the rainbow’s circle. Chen Hui/VCG via Getty Images The legend goes that there is a pot of gold hidden at the end of every rainbow.

Rainbows, with their bright bands of colors appearing in the sky, captivate both young and old. But what causes this natural phenomenon? Sunlight appears white but is actually composed of all the ...

MACON, Ga. — A rainbow forms when sunlight enters a raindrop. When this happens, sunlight bounces around the raindrop and changes speed and direction. That's called refraction. These changes also ...