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

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 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 ...

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

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

A bizarre hailstorm of icy “mushballs” — slushy mixtures of ammonia and water — has been confirmed on Jupiter, where intense ...

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