“Where the Small Moon Rules” was uploaded to Flickr

Pan may be small as satellites go, but like many of Saturn's ring moons, it has a has a very visible effect on the rings. via NASA ift.tt/2cCH3E7
embiggen by clicking http://flic.kr/p/Mdy6P1
Where the Small Moon Rules was taken on September 19, 2016 at 03:22AM