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.

For decades, our solar system was thought to have nine planets, with Pluto considered the smallest and farthest. But in 2006, ...

Jupiter may have once been more than twice its current size, with a magnetic field 50 times stronger, say scientists who ...

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 ...

The team's calculations indicate that young Jupiter had a radius nearly twice its current size, with a volume large enough to ...

You don't need us to tell you that Jupiter, which has more than twice the mass of all the other planets in the Solar System ...

Jupiter, roughly 562 million miles from Earth today, has nearly 100 moons. But Batygin and his collaborator Fred Adams' research focused on two of the smaller ones, Amalthea and Thebe. Both are inside ...

Scientists focused on Jupiter's little moons Amalthea and Thebe. Their peculiar orbits didn't quite fit with Jupiter's ...

Understanding Jupiter's early evolution helps illuminate the broader story of how our solar system developed its distinct ...

"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 ...

Jupiter wasn’t always the planet we know today—it was once twice as big, had a magnetic field 50 times stronger, and its ...

Astronomers have discovered that the Jupiter, the largest planet in our Solar System, was once so big that it could have held ...