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 ...

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

A new study reveals that Jupiter has massive primordial form and powerful magnetic field, offering fresh insights into how it ...

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

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

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

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 ...

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

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

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

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

A new study has revealed that Jupiter—our solar system’s largest planet—was once even more enormous than it is today. In fact ...