The Moon is the largest natural satellite in the Solar System relative to its primary planet. [g][h][72] The Moon's diameter is about 3,500 km, more than one-quarter of Earth's, with the face of the Moon …

Moons There are at least 338 moons of the various planets, dwarf planets in the solar system. The planets Mercury and Venus do not have any moons and neither does the dwarf planet Ceres. Find …

A complete list of the 181 moons that are orbiting planets and dwarf planets in our solar system, with facts and information about each moon.

Slightly larger than Earth's Moon, Io is the fourth-largest natural satellite in the Solar System, has the highest density and strongest surface gravity of any natural satellite, and the lowest amount of water …

Explore the 3D world of the Solar System. Learn about past and future missions.

Visualize orbits, relative positions and movements of the Solar System objects in an interactive 3D Solar System viewer and simulator.

The solar system has one star, eight planets, five dwarf planets, at least 290 moons, more than 1.3 million asteroids, and about 3,900 comets.

Mar 25, 2026 · The solar system has many more moons than the one we can see in the sky. But how many do we actually know about? And how many more are waiting to be discovered?

Biggest To Smallest Here you can learn about the 30 largest moons (by diameter) in the solar system! There are over 180 moons that orbit the planets and dwarf planets. […]

Learn about the different planets in our Solar System. Find out their size, temperature and distance from the Sun in this Scotland Second Level Science article.