1. How many planets do not have natural satellites? Two planets, Venus and Mercury, are the only planets in the solar system that do not have any natural satellites or moons. Mercury, Venus, Mars and Earth are inner planets. The outer planets are Jupiter, Uranus, Saturn and Neptune. Earth has one large natural satellite, known as the Moon; and Mars has two tiny natural satellites, Phobos and Deimos. 2. How many moons… Read more →
