Why not take this time to talk about the ingredients of a rainbow and how they form? You may not know that a rainbow is presented in a full circle. The "bow" is the portion that people usually see.

Can rainbows form in a circle? – Henry D., age 7, Cambridge, Massachusetts The legend goes that there is a pot of gold hidden at the end of every rainbow. But is there really an “end” to a ...

Check out this beautiful photo of nacreous clouds, also known as rainbow clouds, from southern Indiana. Here's how the ...