蛾眉相的海王星和海卫一
2023年5月27日 Crescent Neptune and Triton Image Credit: NASA, Voyager 2 Explanation: Gliding through the outer Solar System, in 1989 the Voyager 2 spacecraft looked toward the Sun to find this view of most distant planet Neptune and its moon Triton together in a crescent phase. The elegant image of ice-giant planet and largest moon was taken from behind just af...