▽Astronomy Picture of the Day ●04/30 23:09 〓 2021 July 25 Crescent Neptune and Triton Image Credit: NASA,Voyager 2 Explanation: Gliding silently through the outer Solar System, the Voyager 2 spacecraft camera captured Neptune and Triton together in crescent phase. The elegant picture of the gas giant planet and its cloudy moon was taken from behind just after closest approach in 1989. It could not have been taken from Earth because Neptune