Jupiter is already the biggest planet by far in our solar system, but new research suggests it was somehow once even larger than it is now. Twice as large, in fact. To put that into context, those ...

Jupiter, the largest planet in the solar system, was 2 to 2.5 times bigger in its earlier life, according to new research. Jupiter, the largest planet orbiting the sun, used to be much bigger and ...

To test this idea, the new study looks at an exoplanet known as VHS 1256b. It has a mass of around 20 Jupiters and is one of ...

Jupiter already reigns as king of the planets — it's the largest one in our solar system. And now, the gas giant has the most known moons, too.Astronomers have observed 12 additional moons orbiting ...

A planet 100 light-years away that resembles a young Jupiter has been discovered by an international team of astronomers that includes six UCLA scientists. The discovery is reported Aug. 13 in the ...

JUICE and the Hubble Space Telescope turned their gazes towards the interstellar visitor in November.

Jupiter, the largest planet orbiting the sun, used to be much bigger and stronger when the solar system was just beginning to take shape, a pair of astronomers say. Two scientists at Caltech and the ...