Callisto’s ancient surface and low geological activity contrast sharply with Jupiter’s other moons. Using real mission images, this report outlines NASA’s discoveries about its structure, composition, ...

Jupiter, the colossal gas giant of our solar system, has always captured the fascination of astronomers and space enthusiasts alike. With its immense size, swirling storm systems, and striking bands ...

Researchers at Loggerhead Marinelife Center found the earliest leatherhead nest in its monitoring history on February 25.

"Eight minutes later, the orbiter started receiving data from the descent probe, which slammed into the top of the Jovian ...

Jupiter isn’t alone in this category; Saturn, Uranus, and Neptune are also gas giants, though Uranus and Neptune are often ...

Exoplanet HIP 67522 b, fluffed up to the size of Jupiter, circles so close to its star that it’s triggering violent flares — ...

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 you tread ...

A spaceship attempting to “land” on Jupiter’s “surface” would have to overcome some significant obstacles.

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

Europa’s surface ice is crystallizing at different rates in different places, which could point to a complex mix of external processes and geologic activity affecting the surface.

Juno has completed 57 flybys of Jupiter and its fascinating moons. The last flyby on Dec. 30 took Juno to within 1,000 miles of the surface of Io, Jupiter’s volcanic moon.