Which planet has the most moons?
Saturn has the most known moons, with well over 250 confirmed. The count keeps rising as astronomers discover small, distant moons with powerful telescopes.
Saturn took the lead from Jupiter in 2023, when astronomers announced dozens of new moons. In 2025, another 128 were confirmed, bringing Saturn's total to 274. Most of these new moons are only a few kilometers across and orbit far from the planet.
Many of these small moons are probably pieces of larger bodies that broke apart in collisions long ago. Some orbit in the opposite direction to Saturn's spin, a sign they were captured.
Saturn's famous moons
Titan, Saturn's largest moon, is bigger than the planet Mercury and has a thick atmosphere and lakes of liquid methane. Enceladus sprays jets of water from an ocean beneath its icy crust. Jupiter has the second-most moons, with about 95 known.
Moons are counted only once astronomers confirm their orbits, which can take years of observations. That is why the totals for Saturn and Jupiter change often, and newer figures may be higher than those in older books.
Did You Know?
Earth has just one natural moon, while Mercury and Venus have none at all.