The Juno probe, which has been orbiting Jupiter since July 2016, is set to conduct a flyby of Io, one of the 80 known moons in Jupiter’s system. Io’s magma-encrusted surface is pockmarked with ...

"For the very first time, we have a global view of Io's ongoing volcanic activity." The most volcanically active world in the solar system, Jupiter's moon Io, may possess a global ocean of magma ...

There are new, high-quality images of Jupiter's moon, Io, thanks to the nearest flyby of the celestial body by a spacecraft in decades. NASA released images Saturday taken by the Juno spacecraft ...

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 ...

In March and April 2025, internet users shared a striking image that they claimed showed "Steeple Mountain," a massive point of interest on Jupiter's moon Io. NASA Jet Propulsion Laboratory ...

On March 9, 1979, Linda Morabito discovered a volcanic plume on Io, a moon of Jupiter, in one of the photos from Voyager 1. She wrote, “I could feel tears begin to roll down my face at the sight ...

Here’s how it works. 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 ...

Jupiter's volcanic moon Io doesn't appear to have a subsurface ocean of magma, resolving some issues about how Io's volcanoes erupt and raising broader questions about similar magma oceans within ...

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 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 ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: (left) NASA/JPL-Caltech/SwRI/MSSS Image processing by Emma Wälimäki; (inset) NASA ...