Jupiter’s Ganymede — has a unique and inexplicable magnetic field. New research could finally explain it: the moon is heating up.

When Jupiter finished clearing out its neighborhood, it may have done more than carve a gap in the young Solar System. Just ...

Add Yahoo as a preferred source to see more of our stories on Google. Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than ...

Add Yahoo as a preferred source to see more of our stories on Google. Jupiter, the largest planet in the solar system, was 2 to 2.5 times bigger in its earlier life, according to new research. Jupiter ...

"This brings us closer to understanding how not only Jupiter but the entire solar system took shape," said Konstantin Batygin, planetary science professor at Caltech and lead author of the study, in a ...

Jupiter already reigns as king of the planets — it's the largest one in our solar system. And now, the gas giant has the most known moons, too.Astronomers have observed 12 additional moons orbiting ...

Jupiter is the biggest planet in our solar system, marked by its Great Red Spot (which, by the way, is shrinking) and its 90-plus moons. The gas giant tends not to grab as many headlines as its ...

When the solar system formed, a disk of gas and dust orbited the young sun. Over the course of millions of years, the dust ...

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 ...