Here’s everything you need to know about rainbows to impress your friends (or search for a pot of gold).

A rainbow is a naturally occurring weather event. You can see a rainbow but you can't touch it. Basically three things are necessary for a rainbow to occur: the sun must be shining, water droplets ...

Many people remember the colors of the rainbow by the acronym ROY G. BIV. For red, orange, yellow, green, blue, indigo and violet. Well, the color indigo just made news. Indigo gets its name from the ...