Hossein Nasri, taken from Seqaleh Desert, South Khorasan, Iran The Milky Way is joined in this panorama by a second arch formed by sunlight scattering off the solar system’s cloud of interplanetary dust. This dust cloud is the cause of two related phenomena — the zodiacal light and the gegenschein. The photographer used an astromodified Continue reading "Double arches" The post Double arches appeared first on Astronomy Magazine .