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 ...

The fifth planet from the sun, Jupiter ... hurricane-like storm called an anticyclone. It's far bigger and longer lasting than any tempests that have ever raged across our planet's surface ...

What views of the night sky would we have if we had evolved on the Jupiter moon Europa, or one of the TRAPPIST-1 planets?

The world’s premier space observatory has spotted a mysterious and huge, free-floating planetary-mass object that’s “just 20 ...

But from space, it’s far harder to see Jupiter’s hostility to life forms. In fact, this color-enhanced image of Jupiter’s cloud belts, taken by the Juno spacecraft, makes the planet look ...

NASA's Juno spacecraft has been orbiting Jupiter since July, 2016. But only just recently have scientists had a chance to analyze all of its data — and the results are painting a different ...

Jupiter, the largest planet in our solar system, will take an outsized place in our night sky on Tuesday, May 8. Head outside after sunset this evening and look to ... use an app like Star Walk ...

NASA’s Juno spacecraft identifies over 40 enormous lava lakes on Io, shedding light on the extreme volcanism sculpting Jupiter’s moon.

Callisto, one of Jupiter’s largest moons, looks like a boring, crater-filled world. It doesn’t seem to have much going on compared to some of Jupiter’s other moons, like Europa. However, in the 1990s, ...

When compared to giant, gaseous planets like Jupiter and Saturn ... But when compared to its parent planet, Jupiter, this sprightly moon looks minuscule and harmless. The image of Io that John ...