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 ...

This week, thanks to a question from Temple, New Hampshire resident Lorraine von Sneidern, the Curiosity Desk not only went chasing answers, we also went chasing rainbows. "Why are the rainbows that I ...

DRAW a circle to represent a rain-drop, or rather a section of it, by a plane passing through its centre, the sun, and the eye. Draw a straight line through the centre to represent a solar ray of mean ...