Mars & Colorful Lunar Fog Bow - Mars was dazzlingly bright as it was nearing its brightest time of 2010. Mars, on the far upper left, is the brightest object in this picture. The brightness of the red planet peaked near when Mars reached opposition, the time when Earth and Mars are closest together in their orbits. Arching across the lower part of the image is a rare lunar fog bow. Unlike a more commonly seen rainbow, which is created by sunlight reflected prismatically by falling rain, this fog bow was created by moonlight reflected by the small water drops that compose fog. Although most fog bows appear white, all of the colors of the rainbow were visible here. — at lmage Credit: Wally Pacholka/AstroPics.com/TWAN/NASA (Haleakala Volcano, Hawaii - Jan. '10).
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