- See more
See all on WikipediaIo (moon) - Wikipedia
Unlike most moons in the outer Solar System, which are mostly composed of water ice, Io is primarily composed of silicate rock surrounding a molten iron or iron sulfide core. Most of Io's surface is composed of extensive plains with a frosty coating of sulfur and sulfur dioxide. See more
Io , or Jupiter I, is the innermost and second-smallest of the four Galilean moons of the planet Jupiter. Slightly larger than Earth's moon, Io is the fourth-largest moon in the Solar System, has the highest density of any … See more
The first reported observation of Io was made by Galileo Galilei on 7 January 1610 using a 20x-power, refracting telescope at the See more
Io plays a significant role in shaping Jupiter's magnetic field, acting as an electric generator that can develop 400,000 volts across itself and create an electric current of 3 … See more
Io has an extremely thin atmosphere consisting mainly of sulfur dioxide (SO 2), with minor constituents including sulfur monoxide (SO), sodium chloride (NaCl), and atomic See more
Although Simon Marius is not credited with the sole discovery of the Galilean satellites, his names for the moons were adopted. In his 1614 … See more
Io orbits Jupiter at a distance of 421,700 km (262,000 mi) from Jupiter's center and 350,000 km (217,000 mi) from its cloudtops. It is the … See more
Io is slightly larger than Earth's Moon. It has a mean radius of 1,821.3 km (1,131.7 mi) (about 5% greater than the Moon's) and a mass of 8.9319×10 kg (about 21% greater than the … See more
Wikipedia text under CC-BY-SA license Io: A guide to Jupiter's volcanic moon | Space
Oct 26, 2022 · Io is Jupiter's fifth moon and its third-largest. It is the most volcanically active body in the solar system.
Io Facts - Science@NASA
Jupiter's rocky 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’s remarkable activity is the result of a tug-of-war between …
Io - NASA Science
Io | Surface, Volcanoes, & Facts | Britannica
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 …
upiter’s moon Io is the most volcanically active world in our Solar System. Eruptions on Io …
The Librations, Tides, and Interior Structure of Io
Aug 13, 2020 · Here, we calculate the libration amplitude of Io for a diverse set of internal structure models and show that Io's libration can provide insight into the existence of a global magma ocean and into the thickness and rigidity of the …
- Some results have been removed
Skip to content
