NASA’s Picture of the Day: Jupiter’s Moon Callisto Holds Potential Ocean Beneath its Cratered Surface

Callisto’s surface, the most heavily cratered in the Solar System, offers a fascinating glimpse into the mysteries of our universe. Voyager 2’s iconic image from 1979 showcases the unique characteristics of this cratered world, hinting at potential secrets lying beneath its icy exterior. Despite its battered appearance, Callisto stands as a testament to the relentless forces shaping celestial bodies in our galaxy. With a size surpassing that of Mercury, this icy moon of Jupiter holds the allure of undiscovered realms waiting to be explored. The image captured by Voyager 2 serves as a reminder of the vastness of our universe and the endless possibilities that lie beyond our reach.