New simulations suggest Jupiter holds far more water than once thought, reshaping ideas about how the largest planet formed.

For generations, Jupiter has been shorthand for a straightforward idea: the biggest planet in the Solar System, a gas giant ...

An atmospheric study reveals unexpected findings about our largest neighboring planet and the structure of its deep atmosphere.

Not all of the solar system’s building blocks formed simultaneously. Some of the first solid bodies, or planetesimals, formed in the first million years after the Sun was born. Others, including the ...

Spectacular clouds swirl across the surface of Jupiter. These clouds contain water, just like Earth's, but are much denser on the gas giant—so thick that no spacecraft has been able to measure exactly ...

While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor ...