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.

Add Yahoo as a preferred source to see more of our stories on Google. 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 ...

The 97th Tulip Time Festival is back starting Friday. Phil Pinarski takes us to Holland and gives us a look at what it takes to put the festival on and how the flowers are blooming this time around.

MACON, Ga. — Rainbows have stretched across Central Georgia all summer, and here is a look as just a few viewers have sent in. These rainbows come in all different shapes and sizes. It may even ponder ...

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 ...

Curious Kids is a series for children of all ages. If you have a question you’d like an expert to answer, send it to curiouskidsus@theconversation.com. Can rainbows form in a circle? – Henry D., age 7 ...