Hawaii’s sunshine, short rain showers and clean air together create some of the planet's best conditions for viewing rainbows ...

"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 ...

Radiation within the visible spectrum can appear black if it is low in power – more specifically, lower in power than its ...

Even though emeralds and rubies are very different colors, they both have the same secret ingredient in their atomic ...