土星与六颗卫星
2021年07月06日 Saturn and Six Moons Image Credit & Copyright: Mohammad Ranjbaran; MR Thanks: Amir Ehteshami Explanation: How many moons does Saturn have? So far 82 have been confirmed, the smallest being only a fraction of a kilometer across. Six of its largest satellites can be seen here in a composite image with 13 short exposure of the bright planet, an...