Io's volcanism makes the satellite one of only four known currently volcanically or cryovolcanically active worlds in the Solar System (the others being Earth, Saturn 's moon Enceladus, and Neptune 's moon Triton.)

2021年3月18日 · The proposed Io Volcano Observer (IVO) mission would aim to understand how tidal heat is generated, lost and drives the evolution of Jupiter’s moon Io – all critical clues to the formation of worlds across the cosmos.

2025年2月6日 · NASA orbiter spots most active volcano yet on Io The third and latest flyby, which took place on Dec. 27, 2024, brought the Juno spacecraft within about 46,200 miles of the moon.

2025年1月29日 · 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.

2025年2月4日 · Io is the most volcanic world in the solar system, with around 400 volcanoes. Its extreme activity is driven by "tidal flexing" from Jupiter's crushing gravity.

Io Volcano Observer (IVO) is a proposed low-cost mission to explore Jupiter's moon Io to understand tidal heating as a fundamental planetary process. [1] The main science goals are to understand (A) how and where tidal heat is generated inside Io, (B) how tidal heat is transported to the surface, and (C) how Io is evolving.

2025年2月3日 · NASA’s Juno spacecraft has uncovered an immense volcanic hot spot on Jupiter’s moon Io, surpassing any previously recorded eruptions in the solar system. This fiery inferno, detected by the JIRAM instrument, radiates over 80 …

2025年1月29日 · Jupiter’s moon Io is highly volcanically active, with around 400 volcanoes on its surface. On its most recent flyby of Io, NASA’s Juno spacecraft detected the most intense volcanic activity...

2024年9月12日 · Jupiter's moon, Io, is the most volcanic body in the Solar System. NASA's Juno spacecraft has been getting closer and closer to Io in the last couple of years, giving us our first close-up images of the moon in 25 years.

2025年2月7日 · 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.