A white rainbow composed of mist was spotted in northern Israel on Friday by Nadav Yisraeli, an ornithologist at the Society for the Protection of Nature. As the name suggests, this is phenomenon is very similar to the colorful rainbow we normally see but is formed in fog rather than rain. Because of the very small size of the water droplets in the fog – less than 0.05 millimeters – the colors in such a rainbow are very weak and you can see mainly the color white, with a little red on the outside and a little blue on the...