... Also known as the Seven Sisters and M45, the Pleiades is one of the brightest and closest open clusters. Giant Dust Ring Discovered Around Saturn . ... What has created a large dust ring around Saturn? ... No one is sure. ... The painting Starry Night is one of the most famous icons of the night sky ever created. ... The small white spot (enlarged in the insets) seen within the dark shadow of lunar crater walls is the initial flash created by the impact of a spent Centaur upper stage rocket. ...