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

The study by Konstantin Batygin of Caltech and Fred Adams of the University of Michigan pulls off a rare feat in planetary science. They have reconstructed Jupiter’s physical state at a precise moment ...

A study published in Nature Astronomy posits that Jupiter was significantly larger earlier in its history and its more ...

As the most massive planet in the Solar System, and first to form, Jupiter’s gravity shaped the formation of everything else.

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