Recent flybys of the fiery world refute a leading theory of its inner structure—and reveal how little is understood about ...

Because Io is so close to its massive host planet, the moon is subjected to a tremendous gravitational pull as it orbits ...

Io fast facts. Age: Io is about 4.5 billion years old, about the same age as Jupiter. Distance from Jupiter: Io is the fifth moon from Jupiter. Its average orbital distance is about 262,000 miles ...

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 ...

Observations made of Jupiter’s moon Io during the Juno mission’s flybys helped astronomers confirm how and why Io became the most volcanic world in the solar system.

The north polar region of Jupiter’s volcanic moon Io was captured by NASA’s Juno during the spacecraft’s 57th close pass of the gas giant on Dec. 30, 2023.

Jupiter sets record after 12 new moons discovered 00:14. A NASA spacecraft made its closest-ever approach to Jupiter's moon Io, coming within 930 miles of the "surface of the most volcanic world ...

Unlike Jupiter's famously erupting moon Io, which appears yellow due to an abundance of sulphur, the Moon would still have looked gray, he says, although the molten rock would have been bright red.

The acid yellow moon Io that orbits Jupiter may be less than 30% the size of Earth, but is considered the most volcanic body in our solar system. As demonstrated by explosive news from NASA on ...

Observations made of Jupiter’s moon Io during the Juno mission’s flybys helped astronomers confirm how and why Io became the most volcanic world in the solar system.