Support WBURScientists Find What Could Be A History-Making MoonPlay02:37Download AudioNell GreenfieldboyceOctober 03, 2018 Share(Top row, from left) Titan, Earth's moon, Europa and Enceladus. (Bottom row, from left) Callisto, Charon, Ariel and lo. (Courtesty of NASA)
(Top row, from left) Titan, Earth's moon, Europa and Enceladus. (Bottom row, from left) Callisto, Charon, Ariel and lo. (Courtesty of NASA)