Io's volcanic activity was discovered during the Voyager flyby of Jupiter, and further imaging has revealed a number of active volcanoes on the moon's surface—so many, that their total output is ...

CHICAGO — An entire ocean of liquid magma, or maybe a hot heart of solid metal, may lurk in Io’s underworld.. The surface of Jupiter’s innermost moon is covered in scorching lava lakes and ...

Jupiter’s moon Io may have been volcanically active throughout its life. In this image of Io, taken by NASA’s Juno spacecraft in 2023, a bright volcanic plume can be seen on the left, just ...

Dazzling auroral displays on Jupiter's moon Io reveal a larger core than scientists previously estimated and a lack of magma ocean. ... (100 kilometers) above the surface of Jupiter's moon Io, ...

Temperatures in this scorching slurry probably top 2,200 degrees Fahrenheit, researchers said, likely making Io's mantle too hot to cool the moon's core by convection.

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 ...

Io is Jupiter's third-largest moon, spanning roughly 2,300 miles (3,700 kilometers) across, which makes it slightly bigger than Earth's moon. It orbits Jupiter at a distance of around 262,000 ...

NASA's robotic Juno spacecraft is delivering the fresh data on Io with a series of flybys, each getting closer to Jupiter's volcanic moon until a pair of close-up encounters at a range of less ...

Jupiter’s moon Io got famous in the 1970s when the passing spacecraft Voyager detected active volcanoes there. Now another craft, Galileo, has taken the closest look ever at Io and found that… ...

Jupiter's moon Io has a huge underground reserve of molten rock helps explain why it's the most volcanically active object in the solar system, spewing out 100 times more lava than all of Earth's ...