Astronomers at The Johns Hopkins University, the Observatoire de Paris, and other institutions have solved a nearly 30-year-old mystery surrounding Jupiter’s moon Io, showing that volcanoes ...

While our moon is relatively calm, Io is considered to be the most volcanically active world in our solar system. And while Earth, of course, has plenty of active volcanoes of its own, eruptions ...

NASA's Juno mission has captured images of Jupiter's volcanic moon Io. The craft has now mapped all of the world's volcanoes, and will help scientists determine what lies under the lava surface.

Jupiter's moon Io, the most volcanically active world in the solar system, may possess a global ocean of magma underneath its surface, as well as mysteriously warm poles, a new study finds.

The volcanoes on Jupiter’s moon Io are like exotic dishes: they’re hot, spicy, and have unfamiliar ingredients, according to new data from NASA’s Galileo spacecraft.

As many as 400 volcanoes are erupting on the surface of Jupiter's innermost moon Io, with virtually every square inch of the moon covered in lava plains. The erupting lava (molten rock that ...

Juno has already performed a close flyby of Io, just over a month ago on December 30. Over the last year, Juno has progressively gotten closer to the volcanic moon, culminating in these last two ...

NASA is creeping closer to a tortured world. The space agency's Juno spacecraft has been swooping ever-closer to Jupiter's moon Io, a place teeming with volcanoes and lava. It's a truly volcanic ...

New Map Reveals Secrets of Io, the Solar System’s Most Volcanic Moon The best-yet map of active volcanoes on Jupiter’s moon Io hints at a hidden magma ocean—and more ...

Since arriving at Jupiter in 2016, Juno has been in a 53-day orbit around the planet, allowing it to study both the gas giant and its moons, including the volcanic Io and the icy Europa.

Io, one of Jupiter's moons, is a "turbulent world" that is "dotted with hundreds of volcanoes," NASA said. Some of those volcanoes have eruptions so powerful that they can be seen by telescopes on ...

I've yet to see a volcano up close, but I have looked at Jupiter's moon Io many times through my telescope. Only a little larger than our own moon, Io is one of the most seismically active bodies ...