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 ...

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 ...

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

"It's amazing that after 35 years, Hubble still holds a unique capability as a top workhorse for science discoveries and ...

Additionally, Jupiter’s moon Io treks in front of the planet, dragging its shadow with it. The event starts around sunset in the Midwest, as Io moves in front of the disk around 8:30 P.M. EDT.

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

They are here! The Moons of Jupiter join the cast! Meet Ganymede, Europa, Callisto and Io as they... do stuff. Welcome to ...

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 ...

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