Jupiter System

Over two weeks in August 2013, Io exploded as a potential window into our past and many planets’ presents.

Three massive volcanic eruptions occurred on Jupiter’s moon Io, a satellite the size of Earth’s moon, within a two-week period last August.

Processes that shaped the ridges and troughs on the surface of Jupiter's icy moon Ganymede are likely similar to tectonic processes seen on Earth.

A new NASA-funded study has shown that Jupiter's moon Ganymede might have layers of ice and oceans sandwiched together beneath its surface.

Is Jupiter a friendly planet, Earth's enemy, or perhaps both?

Using images from NASA’s Voyager Mission (1979) and the orbital Galileo Mission (1995), researchers have created the first global geological map of Jupiter’s largest moon, Ganymede.

A new study explains why Jupiter's Giant Red Spot exists today, even though fluid dynamics suggest that it should have faded centuries ago.

New observations of Io have revealed a massive volcanic eruption on the Jovian moon.

A new study shows that volcanic activity on Jupiter's moon Io is not where models predicted it would be. The study provides new insight into the processes behind tidal heating.

A new theoretical model is providing clues to how the gas giant planets in our solar system -- Jupiter and Saturn -- might have formed and evolved.