A rainbow, cloud bow, morning glories, halo, sun dog (parhelion), or any kind of optical arc in the sky involve some form of water or ice interacting with sunlight. There are a lot of great places ...

The arms spanned areas of blue sky. It was very transient, like the shower, and fading rapidly, was gone within 10 sec. after it was first observed. At 4.45 P.M., the left side of an incomplete ...

blue, indigo and violet -- in the part of the sky directly opposite the sun. Many in Central New York also saw a double rainbow Monday, with a second, fainter rainbow appearing next to the ...