Updated measurements from NASA’s Juno spacecraft could help researchers better understand the planet's mysterious interior, ...

For over 50 years, we thought we knew the size and shape of Jupiter, the solar system's largest planet. Now, Weizmann ...

Jupiter’s swirling storms have concealed its true makeup for centuries, but a new model is finally peeling back the clouds.

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

Two of Earth’s neighbors are about to look very close in the night sky — and it will be a while until they look this close again. On Wednesday, Mars and Jupiter are expected to get extra close in the ...

For generations, Jupiter has been shorthand for a straightforward idea: the biggest planet in the Solar System, a gas giant that quietly shepherds comets and anchors the outer worlds. That picture is ...

Jupiter and Mars are about to get up close and personal to one another. Look up to the sky early Wednesday morning and you'll see what astronomers call a planetary conjunction. This is what is ...

Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact. To put that into context, those ...