Io (moon) - Wikipedia
Slightly larger than Earth's moon, Io is the fourth-largest moon in the Solar System, has the highest density of any moon, the strongest surface gravity of any moon, and the lowest amount of water by atomic ratio of any known astronomical object in the Solar System.
Io Facts - Science@NASA
Io is Jupiter's third largest moon, and the most volcanically active world in the solar system. Io is named for a mythological woman transformed into a cow during a marital dispute between the Greek god Zeus – Jupiter in Roman mythology – and his wife, Juno.
Io - NASA Science
Jupiter's moon Io is the most volcanically active world in the solar system, with hundreds of volcanoes, some erupting lava fountains dozens of miles (or kilometers) high.
Io Moon Facts - Space Facts
Facts about Io. Io has more than 400 active volcanoes on its surface. They make this little moon the most actively volcanic world in the solar system. The volcanism on Io is due to tidal heating, as the moon is stretched by Jupiter’s strong gravitational pull and by the lesser gravitational effects of the other satellites.
For Your Processing Pleasure: The Sharpest Pictures of Jupiter’s ...
Feb 7, 2024 · Jupiter's moon Io, its night side illuminated by reflected sunlight from Jupiter, or "Jupitershine." NASA’s Juno spacecraft just made the closest flybys of Jupiter’s moon Io that any spacecraft has carried out in more than 20 years.
Io | Surface, Volcanoes, & Facts | Britannica
Dec 19, 2024 · Io, innermost of the four large moons (Galilean satellites) discovered around Jupiter by the Italian astronomer Galileo in 1610. It is the most volcanically active body in the solar system. As many as 300 volcanoes may be active on the satellite at a given time.
Io, Jupiter’s chaotic volcano moon | The Planetary Society
Io is the innermost of Jupiter’s four largest moons, which are also known as the Galilean moons (Europa, Ganymede, and Callisto are the remaining three). Because it’s the closest moon to its massive host planet, Io feels a strong gravitational pull as it orbits Jupiter.
Exploration of Io - Wikipedia
The exploration of Io, Jupiter's innermost Galilean and third-largest moon, began with its discovery in 1610 and continues today with Earth-based observations and visits by spacecraft to the Jupiter system.
Io (moon) - Simple English Wikipedia, the free encyclopedia
Io is a moon of the planet Jupiter. It is Jupiter's third biggest moon with a diameter of 3642 km, slightly bigger than Earth 's moon. Io has about 400 active volcanos. It is the most volcanically active body in the Solar System.
Io: A guide to Jupiter's volcanic moon | Space
Oct 26, 2022 · Io — Jupiter's fifth moon — is the most volcanically active body in the solar system. Io's surface is peppered with hundreds of volcanoes, some spewing sulfurous plumes hundreds of miles high.