NASA reports that Callisto is the third largest satellite in the solar system and roughly the size of Mercury. Pictured here in color, NASA points out that its many markings show a turbulent history of collisions with space objects. In fact, Callisto is known to be the most heavily cratered object in our solar system.
(via bbook)
NASA reports that Callisto is the third largest satellite in the solar system and roughly the size of Mercury. Pictured here in color, NASA points out that its many markings show a turbulent history of collisions with space objects. In fact, Callisto is known to be the most heavily cratered object in our solar system.
(via bbook)
