Sun Halo
If you wish to learn more about why Sun Halos are formed, there is an interesting read available at NASA: http://science1.nasa.gov/science-news/science-at-nasa/2002/24oct_sunrings/
A site dedicated to collecting and sharing pictures from around the world
If you wish to learn more about why Sun Halos are formed, there is an interesting read available at NASA: http://science1.nasa.gov/science-news/science-at-nasa/2002/24oct_sunrings/