A rainbow around the sun, also known as a 22 degree halo or a sun halo, is caused by sunlight passing through ice crystals in cirrus clouds within the Earth's atmosphere, the University of Illinois' Weather World Project 2010 explains. (See WW2010's website for diagrams that illustrate how it works.) http://m.huffpost.com/us/entry/3279175
Gorgeous Full Circle Rainbow Photographed Over Australia
On Tuesday, NASA chose this stunning image of a full circle rainbow taken from the air above Cottesloe Beach, near Perth, Australia, as its Astronomy Picture of the Day. According to Slate, photos of circular rainbows like this one are quite rare.
Happy Clouds and Rainbows ~When I see this I see little pony beads sliding up the colors of ribbons as a page on a quiet book or a busy blanket~ I am really thinking of a it as a fun wall hanging for a wall toy, though.