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

For instance, the Hubble Space Telescope entered safe mode relatively recently as scientists worked on remedying some ...

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 ...

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

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 ...

The one member of our Solar System that surpasses Earth in volcanic vitality is Io, Jupiter’s innermost moon. Containing around 400 powerful volcanoes, Io is influenced by Jupiter’s gravitational pull ...

In March and April 2025, internet users shared a striking image that they claimed showed "Steeple Mountain," a massive point of interest on Jupiter's moon Io. For example, one X u ...

Scientists are using an array of instruments to detect other planets, some of which may harbor life—and others that most ...