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

In March and April 2025, internet users shared a striking image that they claimed showed "Steeple Mountain," a massive point ...

Jupiter's volcanic moon Io doesn't appear to have a subsurface ocean of magma, resolving some issues about how Io's volcanoes erupt and raising broader questions about similar magma oceans within ...

In Io's case, Jupiter's intense gravity tugs on the much smaller moon as the latter orbits in an elliptical (oval-shaped) pattern, meaning Io is closer to Jupiter at some points during its orbit ...

NASA's Juno spacecraft has resumed normal operations after entering safe mode twice during its 71st close approach to Jupiter on April 4.

Or perhaps more likely, look at under a microscope. The latest candidate for hosting nearby life is Jupiter’s moon, Io. Let’s take a look at what makes Io special, and what we might hope to ...

An curved arrow pointing right. The surface of Io, one of Jupiter's many moons, is an especially hostile environment – even for space. Scientists recently observed its atmosphere completely ...

Enjoy dark skies for evening observing, then catch a meteor shower and a planetary conjunction in the morning sky this week.

The celestial image could be spoiled by a dull Saturn, which might lack the brightness needed to tie the smiley together, ...

Just like hundreds of the volcanoes you see today on Jupiter's hellish moon, Io. But even that's not the end of the spectacle. Right now, our current moon is spiraling away from Earth at 3.8 cm a ...

What can a sample return mission from Jupiter's volcanic moon, Io, teach scientists about planetary and satellite (moon) formation and evolution? This is what a recent study presented at the 56th ...