One of the big surprises: Despite the moon's cooled crust, the data shows Io maintains liquid hot lava just below the ground.

A group of swirling storms at Jupiter's north pole are bouncing off each other, like bumper cars at the fairground.

NASA's Juno spacecraft made a close flyby of Jupiter moon lo. See an animation of the images the probe captured created by ...

What’s more, data from Juno’s Io flybys has revealed the subsurface temperature profile of Io, the innermost of the four ...

NASA’s Juno probe has been orbiting Jupiter since 2016, and it’s still sending back fresh data. The spacecraft is giving ...

NASA’s Juno spacecraft has just delivered some exciting discoveries from Jupiter and its fiery moon, Io. The new findings, ...

JunoCam, the visible light imager aboard NASA's Juno, captured this enhanced-color view of Ju-piter's northern high latitudes ...

New data from NASA's Juno mission has shed light on the dynamic atmosphere of Jupiter and the volcanic activity on its fiery ...

Large hailstones made of ammonia may explain why the gas is missing from large pockets of Jupiter's atmosphere.

NASA's Juno spacecraft has resumed normal operations after entering safe mode twice during its 71st close approach to Jupiter ...

Recent flybys of the fiery world refute a leading theory of its inner structure — and reveal how little is understood about ...