... Shadows of Saturn at Equinox . ... Credit: Cassini Imaging Team , ISS , JPL , ESA , NASA Explanation: Unusual shadows and dark rings appeared around Saturn near its equinox last month. At that time -- early August -- Saturn's ring plane pointed directly at the Sun. ... Images near equinox at Saturn are giving astronomers a chance to search for unexpected shadows that may illuminate previously unknown features of Saturn's complex ring system . ... Publications with keywords: Saturn - equinox . ...