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

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 ...

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

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

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

NASA’s Juno mission has unveiled new insights into Jupiter’s fierce winds, cyclones, and volcanic activity on its moon, Io.

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

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

A burst of solar wind triggered a planet-wide heatwave in Jupiter’s upper atmosphere, say astronomers at the University in ...

NASA scientists have reestablished communications with the Juno spacecraft following the probe sliding into safe mode on April 4.