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 .

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 ...

The moon spent a few million years as a volcanic wasteland, covered with ongoing eruptions that spewed from mountains and ...

The hellish surface of a moon of Jupiter known as Io is riddled with hundreds of lava-spewing volcanoes that make the world ...

Jupiter’s moon Io has possibly been erupting for a very, very, very long time. Io is the most volcanically active body in our solar system, with some of its volcanoes shooting magma higher than ...

an intriguing geologic question remains: Is there a grandiose global sea of magma swirling beneath Io's surface? Or, perhaps, is the lava pouring onto the moon largely created by a process more ...

A new report suggests it was born this way. This image revealing the north polar region of the Jovian moon Io was taken on October 15, 2023, by the JunoCam imager aboard NASA's Juno spacecraft.

The acid yellow moon Io that orbits Jupiter may be less than 30% the size of Earth, but is considered the most volcanic body ...

"Io represented a big mystery because its surface doesn't hold a record of its history the way that the surfaces of less active moons do." The solar system's most volcanic body, the Jupiter moon ...

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

No moon in our solar system is likely as chaotic as Io, Jupiter’s third largest. The rocky body looks like a pepperoni pizza because of the constant, numerous eruptions on its surface.