Eleven times wider than Earth. Over 300 times more massive. And a million times more terrifying. Jupiter may look like a beautiful ball of swirling clouds, but on the inside, it is a gaseous inferno.

The discovery of an extraordinary multi-planet system has demonstrated that so-called "hot Jupiter" planets may not be lonely giants after all. The findings could force scientists to revise their ...

Jupiter and Saturn's different polar storms reveal clues about planet interiors: Saturn has harder bottom than Jupiter.

NASA's James Webb Telescope has captured auroras on Jupiter that have hundreds of times more energy than those here on Earth. Jupiter's auroras are like the "Northern Lights, but way bigger!" NASA ...

Add Yahoo as a preferred source to see more of our stories on Google. In a first, scientists have discovered a massive wave of solar wind that hit Jupiter and compressed its protective bubble. A solar ...

Spectacular clouds swirl across the surface of Jupiter. These clouds contain water, just like Earth's, but are much denser on ...

The shocking findings were part of a recent study in which astronomers effectively peered back in time to discover what Jupiter was like in its early years. Jupiter is not only the largest in the ...

Over the years, passing spacecraft have observed mystifying weather patterns at the poles of Jupiter and Saturn. The two ...

We flew between the giant planet Jupiter and the sun on January 10. This is Jupiter's yearly opposition. We are now in the ...

The very bright "star" you see in the eastern sky after sunset is actually the planet Jupiter. It is just coming off ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Early risers this month can see a “planet parade” building ...