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 ...

There’s a new frozen oddball orbiting the Sun, and it’s not your average space rock. It’s a planet—a minor one, to be ...

A new dwarf planet, discovered beyond Neptune and described as Pluto's 'cousin,' could void the hypothesis of a Planet X in ...

Today, it’s believed that Jupiter and Saturn, the largest planets, were the first to fully form, both within a few million ...

China's ambitious Tianwen-2 mission will soon be heading to two extremely different space rocks, and should provide vital ...

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

You don't need us to tell you that Jupiter, which has more than twice the mass of all the other planets in the Solar System ...

Jupiter may have once been more than twice its current size, with a magnetic field 50 times stronger, say scientists who ...

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 ...

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 ...