While Saturn's rings may disappear in less than 100 million years because gravity is pulling them into the planet, apparently they haven't always surrounded the planet, either. The finding was published in the journal Science on Thursday.
원문출처 : https://www.cnn.com/2019/01/17/world/saturn-rings-recent-formation/index.html
원문출처 : https://www.cnn.com/2019/01/17/world/saturn-rings-recent-formation/index.html