蛾眉相的土星

2020年8月8日 Crescent Saturn Image Credit: NASA, ESA, SSI, Cassini Imaging Team Explanation: From Earth, Saturn never shows a crescent phase. But when viewed from a spacecraft the majestic giant planet can show just a sunlit slice. This image of crescent Saturn in natural color was taken by the robotic Cassini spacecraft in 2007. It captures Saturn’s ring...