A possible new dwarf planet has been discovered at the edge of our solar system, so far-flung that it takes around 25,000 ...

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.

Jupiter, the largest planet orbiting the sun, used to be much bigger and stronger when the solar system was just beginning to ...

New research suggests there may be a narrow window of possibility for life to persist on the icy moons of the outer solar ...

Astronomers have been left puzzled by the discovery of an unusually large planet orbiting a remarkably small star, a cosmic ...

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

A group of astronomers from across the globe, including a team from the University of Washington and led by Queen's ...

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 ...

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 computer simulation predicts that the Rubin Observatory will discover millions of previously undetected objects in the ...

Jupiter is not only the largest in the solar system, but is so humongous that it's more than twice as massive as the other planets combined. The gas giant's influential place in shaping our solar ...