what are the two moons that are larger than the planet mercury
Mercury - Size, Mass, and Density - Mercury is the smallest planet in both mass and diameter. It is about 18 times less massive than Earth. With a diameter of about 3,032 miles (4,879 kilometers), Mercury is not quite two fifths the size of Earth. It is only about a third larger than Earthâs Moon. In fact, two moons in the solar systemâJupiterâs moon Ganymede and Saturnâs moon Titanâare larger than Mercury. However, Mercury is larger than the dwarf planet Pluto. Forâ¦