The hellish surface of a moon of Jupiter known as Io is riddled with hundreds of lava-spewing volcanoes that make the world one of chaos and violence. The brutal conditions also make Io intriguing to ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Io is the most volcanic world in the solar system, with around 400 volcanoes. Its extreme ...

Looking for a sky event this week? Check out our full Sky This Week column. December 26: The Moon shares the sky with Saturn ...

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," and the space agency released new images of the flyby. The ...

Jupiter’s moon Io is a dramatic place — even though it’s just 1,131 miles across, or just a bit bigger than Earth’s moon, it hosts over 400 active volcanoes, some of which are as large as 124 miles ...

The last time a spacecraft got this close to Jupiter’s moon Io was more than 20 years ago, a blink of an eye on a typical geological timescale. Most planetary bodies in our Solar System wouldn’t ...

Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET. When not wallowing in weird gear and iPad apps for cats, she can be found tinkering with her 1956 DeSoto. Jupiter ...

Jupiter’s third-largest moon Io is covered by more than 400 active volcanoes, and it’s the most volcanically active world in our solar system. New radio images collected by an array of telescopes on ...

Jupiter's third-largest moon, Io, is the most volcanically active body in the solar system, as confirmed by the longest-running observations of the moon's thermal output. The regular eruptions and ...

You're a Jovian lunar explorer in the year 2200. You've piloted your lander to the surface of Io, the smallest and innermost of Jupiter's four largest moons. Genetically modified to survive even the ...