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 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 ...

The small world was found during a search for the hypothetical Planet Nine, and astronomers say the next time it will reach ...

As it orbits the sun once every 25,000 years, the celestial body 2017 OF201 travels beyond the Kuiper Belt into a region ...

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

With an atmosphere, by mass, of primarily hydrogen (76 per cent) and helium (24 per cent), and by volume of 89 per cent ...

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

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 ...

"This brings us closer to understanding how not only Jupiter but the entire solar system took shape," said Konstantin Batygin, planetary science professor at Caltech and lead author of the study ...

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

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