But in the grand scheme of the solar system, Earth's Moon isn't as big as you might think. Oberon is Uranus’s second-largest moon, and like most of its neighbors, it’s a cold, cratered chunk of ice ...

If there was a contest for the most interesting moon in our solar system, Callisto would be a contender. Jupiter's ...

According to Cochrane, the team was working on a different project, involving scanning Neptune's moon Triton to see if it has a subsurface ocean. This presented a challenge, because of Triton's ...