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 ...

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 ...

Eight distant worlds hold secrets that still puzzle scientists and spark endless curiosity. Each moon offers a strange allure ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Jupiter's radius used to be twice its current size, and the planet had a magnetic field 50 times ...

"This is the most powerful volcanic event ever recorded on the most volcanic world in our solar system — so that's really saying something." When you purchase through links on our site, we may earn an ...

The ocean on Ganymede may have more water than all the water on Earth. In this artist’s concept, the moon Ganymede orbits the giant planet Jupiter. NASA’s Hubble Space Telescope observed aurorae on ...

Astronomers are still finding moons at Jupiter, 400 years after Galileo used his spyglass to spot the first ones. The latest discovery of a dozen small moons brings the total to 79, the most of any ...

This illustration provided by NASA depicts the Europa Clipper spacecraft over the moon, Europa, with Jupiter at background left. (NASA/JPL-Caltech via AP) (CN) — The largest planet in our solar system ...

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