If there was a contest for the most interesting moon in our solar system, Callisto would be a contender. Jupiter's ...

Why does Jupiter look like it has a surface – even though it doesn’t have one? – Sejal, age 7, Bangalore, India The planet Jupiter has no solid ground – no surface, like the grass or dirt ...

That’s definitely not changing.” Robert Hooke and Giovanni Cassini, two of the leading astronomers in the 1600s, both noted spots on Jupiter’s surface that resemble the modern storm. But there’s a gap ...

which revealed cyclone swarms gyrating on its surface with roots that likely extend deep below the upper bands of clouds. Though Jupiter has been so intensely examined, many mysteries remain.

Europa, one of Jupiter’s intriguing moons, is hiding an ocean beneath its icy shell — an ocean that might harbor alien life.

Jupiter's second-largest moon has more impact craters on its surface than any other planetary body in the solar system, and it has tons of ice on its surface as well. For decades. researchers ...

Io’s long-debated magma ocean may not exist. Juno spacecraft data reveals that tidal forces deform the moon differently than ...

In the 1990s, however, NASA's Galileo spacecraft captured magnetic measurements near Callisto that suggested that its ice shell surface—much like that of Europa, another moon of Jupiter—may ...

When a mudflat crumbles on Earth, or an ice sheet splinters on one of Jupiter's moons (Europa), or an ancient lakebed breaks ...

Using data collected by NASA’s Juno spacecraft as it flew past Jupiter’s highly volcanic moon Io in late 2023 and again in ...