Jupiter, the largest planet in our Solar System, hides a past very different from its current appearance. A recent study ...

You know Metis and Thebe and Adrastea and Amalthea. Io and Ganymede and Callisto and Europa.

"It's astonishing that even after 4.5 billion years, enough clues remain to let us reconstruct Jupiter's physical state at the dawn of its existence," stated Fred C. Adams, professor of physics and ...

A new study published in Nature Astronomy on May 20, 2025, uncovers that Jupiter was once twice its present size ...

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

In its earliest days, Jupiter may have been even more colossal than it is now—twice as large, in fact, with a magnetic field ...

Jupiter, roughly 562 million miles from Earth today, has nearly 100 moons. But Batygin and his collaborator Fred Adams' ...

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 ...

The new calculations, described in a paper published Tuesday (May 20) in the journal Nature Astronomy, suggest that just 3.8 ...

As the most massive planet in the Solar System, and first to form, Jupiter’s gravity shaped the formation of everything else. To better understand how the newborn giant threw its weight around, ...