A massive, fast-orbiting planet is inching closer to its star, and scientists now have direct evidence of its impending ...

Courtesy / ESO Astronomers have spotted a planet about 10 times the size of Jupiter orbiting a B-type star that is more than three times as hot as the sun.

Astronomers believe they have captured an image of a planet in the act of forming, something that has never before been ...

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 ...

Astronomers have discovered 12 new moons around Jupiter, putting the total count at a record-breaking 92. That's more than any other planet in our solar system.

In a mission that changed our understanding of gas giants, NASA’s Galileo spacecraft made history not just in orbit but also ...

Jupiter, the fifth planet from the Sun, is between Mars and Saturn. It’s the largest planet in the solar system, big enough for more than 1,000 Earths to fit inside, with room to spare.

Jupiter, the largest planet orbiting the sun, used to be much bigger and stronger when the solar system was just beginning to take shape, a pair of astronomers say. Two scientists at Caltech and ...

On Monday, NASA's Juno spacecraft safely arrived in orbit around Jupiter. Jupiter is a planet scientists have dubbed "the biggest and baddest" in our solar system Here are some reasons why.

The majority of known asteroids orbit in the main belt between Mars and Jupiter. It is unlikely that the many bodies here were ever part of a single planet. This illustration shows the positions ...