Here’s a video of sundogs in the sky over Mongolia. Sundogs are fake suns that appear on either side of the real sun when hexagonal ice crystals in the upper atmosphere line up horizontally and bend light. The middle sun is the real one.
Winter is approaching in the southern hemisphere of Saturn and with this cold season has come a familiar blue hue that was previously discovered in the north. Scientists have learned that the changing blue hue marks winter on Saturn due to reduction of ultraviolet sunlight and the haze it produces, making the atmosphere clearer and increasing the opportunity for Rayleigh scattering (scattering by molecules and smaller particles) and methane absorption: both processes make the atmosphere blue.