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 ...

If you happen to find yourself on Jupiter's moon Io, you could be in for some serious trouble. The moon is thought to be the most volcanic place in the solar system, with hundreds of volcanoes dotting ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. The Juno mission ...

Roughly 40 years ago, the Voyager 1 spacecraft sailed past one of Jupiter’s large moons, and it revealed something amazing: The rocky moon, called Io, is a volcanic champion, featuring the first ...

Scientists can say two things with certainty about Io. First, this moon of Jupiter is the most volcanic object in the known universe. Its surface is festooned with so many lava-spewing calderas that ...

The original version of this story appeared in Quanta Magazine. Scott Bolton’s first encounter with Io took place in the summer of 1980, right after he graduated from college and started a job at NASA ...

"It's like estimating the brightness of a bonfire by observing only the flames and not the surrounding embers." Using data from NASA's Juno spacecraft, scientists have discovered that the solar system ...

Scott Bolton’s first encounter with Io took place in the summer of 1980, right after he graduated from college and started a job at NASA. The Voyager 1 spacecraft had flown past this moon of Jupiter, ...

The solar-powered spacecraft will make its 52nd flyby of Io this weekend, taking its closest-ever look at the volcanic moon. When you purchase through links on our site, we may earn an affiliate ...