"Why are there so many songs about rainbows?" sings Kermit the Frog in a song (about rainbows) called "Rainbow Connection" from 1979's "The Muppet Movie." And it's not just songs that feature rainbows ...
T he sky isn't just blue by chance. I t takes all the colors of the rainbow ... red. Light has to pass through a larger part of the atmosphere when the sun is lower on the horizon. Red, orange ...