What Planet Has the Largest Moon?

What Planet Has the Largest Moon?

What Planet Has the Largest Moon?

According to NASA, Jupiter's moon, Ganymede, is the largest moon in the solar system. It has a diameter of 2,631 kilometers. Ganymede is larger than both Pluto and Mercury and is 3/4 the size of Mars. Unlike many other moons, Ganymede has a core that generates a substantial magnetic field.

Charon, the largest moon of Pluto, is the largest moon in the solar system relative to the world it orbits. It has a diameter of 1,207 kilometers, just over half the diameter of Pluto. Charon is also tidally locked to Pluto. As a result, it always shows the same face to Pluto.