Where is the Rainbow?

An artist's rendering of refraction and reflection in a water droplet.

An artist's rendering of refraction and reflection in a water droplet.

When it rains on a sunny day, sometimes we see rainbows—circular arcs of every color from red to violet. When sunlight hits a water droplet, the light bends and is reflected at a specific angle. Different colors of light bend differently, so the droplets split up sunlight into a band of colors.

If the conditions are right, which direction should you face to most likely see a rainbow?

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