Io (moon) - Wikipedia
Io (/ ˈaɪ.oʊ /), or Jupiter I, is the innermost and second-smallest of the four Galilean moons of the planet Jupiter.
Io - Science@NASA
Jan 29, 2025 · 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.
NASA's Juno spots most powerful volcano ever on Jupiter's moon Io
1 day ago · Jupiter moon of Io is famed for its volcanoes. NASA just spotted the most powerful one yet Not only was the hot spot larger than Earth’s Lake Superior, but it also was seen belching out ...
Io Facts - Science@NASA
Oct 26, 2024 · Io is Jupiter’s third largest moon, and the most volcanically active world in the solar system. Io was discovered on Jan. 8, 1610, by Galileo Galilei, along with Jupiter’s three other largest moons: Europa, Ganymede. and Callisto.
Io | Surface, Volcanoes, & Facts | Britannica
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.
NASA Captures 'Most Intense Volcanic Eruption Ever' on Jupiter's Moon Io
Jan 31, 2025 · Juno was sent to Jupiter to study the giant planet, but that primary mission ended, and NASA extended the mission. Currently, it is performing flybys of three of the Galilean moons: Ganymede, Europa, and Io. We've reported on Juno's Io flybys previously.
Io, Jupiter’s chaotic volcano moon - The Planetary Society
Io is the innermost and third-largest of Jupiter’s four Galilean moons. Io is covered in hundreds of volcanoes. It is the most volcanically active world in the Solar System. Io can help us understand volcanism and tidal heating throughout the Solar System.
Io: A guide to Jupiter's volcanic moon - Space.com
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...
Io: Exploration - NASA Science
Nov 4, 2024 · Most of what we know about Io comes from Galileo spacecraft, which made a detailed study of the Jupiter system—including Io—from orbit from December 1995 to September 2006, but it was Voyager 1 that spotted the first signs …
Io: Facts about Jupiter's Moon, Io • The Planets
Io is the fifth moon of Jupiter and the fourth largest moon in the solar system. It is the innermost of the Galilean moons that orbit Jupiter. Io is the most volcanically active body in the solar system, spewing out sulphur as high as 300 km (190 miles) in the air.