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

Jupiter harbors more oxygen than the sun, a new study finds, giving astronomers a crucial clue about how our solar system's ...

Thick, swirling clouds cover Jupiter from pole to pole. They hold water like Earth’s clouds, but at far greater density.

How nutrients from Europa's icy shell reach its ocean has been unclear despite several theories.

With the moon out of the way on Jan. 18, bright Jupiter and Saturn become stand-outs in the January night sky.