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 innermost of the Galilean satellites of Jupiter, its orbit lying between those of Thebe and Europa. Including Jupiter's inner satellites, Io is the fifth moon out from Jupiter.

9 hours 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 ...

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.

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.

3 days ago · Io is Jupiter's third-largest moon, spanning roughly 2,300 miles (3,700 kilometers) across, which makes it slightly bigger than Earth's moon. It orbits Jupiter at a distance of around 262,000 ...

Jan 29, 2025 · 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 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.

Jan 31, 2025 · Jupiter stretches and pulls on the little moon, causing it to flex and change shape, creating internal heat. The other Galilean moons also contribute. This simple graphic explains tidal heating on Io. (A) Of the four major moons of Jupiter, Io is the innermost one. Gravity from these bodies pulls Io in varying directions. (B) Io's eccentric orbit.

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.

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...