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 ...

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

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

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

The study by Konstantin Batygin of Caltech and Fred Adams of the University of Michigan pulls off a rare feat in planetary ...

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

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 ...

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

Before Jupiter became the giant planet it is today, it was much larger and had a much stronger magnetic field, according to a ...

Jupiter is an impressive phenomenon in our solar system. Nevertheless, it has diminished considerably since its early days.