Jupiter, the largest planet orbiting the sun, used to be much bigger and stronger when the solar system was just beginning to ...

A recent study found that Jupiter was once twice the size that it is now, making it big enough to swallow up 2,000 Earths.

Astronomers have calculated that the gas giant Jupiter used to be twice as big as it is now, based on the odd orbits of two ...

According to their work, Jupiter's radius was once two to two-and-a-half times its current radius—large enough to contain ...

Following the much-ballyhooed “planet parade” this winter, the planets have been gradually dipping below the horizon, ...

A Europa Lander prototype was just successfully field tested on Alaska's Matanuska Glacier to simulate the icy conditions of ...

Naturally, the aurora on our solar system's largest planet is hundreds of times brighter and more energetic than our own Northern lights.

Scientists believe such an extreme orbit means the object was pushed and pulled by the gravity of giant planets like Jupiter ...

A pair of researchers in astrophysics claim the data sheds new light on Jupiter’s role in shaping the early solar system and ...

There’s a new frozen oddball orbiting the Sun, and it’s not your average space rock. It’s a planet—a minor one, to be ...

Stunning new Jupiter photos from NASA’s Juno spacecraft reveal storms, cloud bands, and its volcanic moon Io as the mission ...

Jupiter's already the big kahuna of the Solar System, an absolute unit of a planet with a mass 2.5 times greater than all of ...