In Depth | Jupiter – NASA Solar System Exploration
With four large moons and many smaller moons, Jupiter forms a kind of miniature solar system. Jupiter has 80 moons. Fifty-seven moons have been given official names by the International Astronomical Union (IAU).
In Depth | Jupiter Moons – NASA Solar System Exploration
NASA’s real-time science encyclopedia of deep space exploration. Our scientists and far-ranging robots explore the wild frontiers of our solar system.
In Depth | Europa – NASA Solar System Exploration
Europa orbits Jupiter every 3.5 days and is locked by gravity to Jupiter, so the same hemisphere of the moon always faces the planet. Jupiter takes about 4,333 Earth days (or about 12 Earth years) to orbit the Sun (a Jovian year).
In Depth | Moons - NASA Solar System Exploration
Jupiter's menagerie of moons includes the largest in the solar system (Ganymede), an ocean moon (Europa) and a volcanic moon (Io). Many of Jupiter's outer moons have highly elliptical orbits and orbit backwards (opposite to the spin of the planet).
Overview | Jupiter Moons - NASA Solar System Exploration
Jupiter has 80 moons. Fifty-seven moons have been given official names by the International Astronomical Union (IAU). Another 23 moons are awaiting official names.
In Depth | Saturn – NASA Solar System Exploration
Like fellow gas giant Jupiter, Saturn is a massive ball made mostly of hydrogen and helium. Saturn is not the only planet to have rings, but none are as spectacular or as complex as Saturn's. Saturn also has dozens of moons.
10 Need-to-Know Things About Jupiter - NASA Solar System …
Jupiter cannot support life as we know it. But some of Jupiter's moons have oceans beneath their crusts that might support life.
Planet Compare - NASA Solar System Exploration
Jan 9, 2025 · Jupiter Click for more Earth Click for more Mercury Click for more Mars Click for more Venus Click for more Saturn Click for more Uranus Click for more Neptune ... About Moons; BY DESTINATION Earth (1) Mars (2) Jupiter (95) Saturn (83) Uranus (27) Neptune (14) Pluto (5) Asteroids, Comets & Meteors. About Asteroids, Comets & Meteors;
In Depth | Our Solar System - NASA Solar System Exploration
The giant planets Jupiter and Saturn lead our solar system’s moon counts. In some ways, the swarms of moons around these worlds resemble mini versions of our solar system. Pluto, smaller than our own moon, has five moons in its orbit, including the Charon, a …
Galleries | Galileo – NASA Solar System Exploration
Jul 11, 2018 · Galileo sparked the birth of modern astronomy with his observations of the Moon, phases of Venus, moons around Jupiter, sunspots, and the news that seemingly countless individual stars make up the Milky Way Galaxy.