When you buy through links on our articles, Future and its syndication partners may earn a commission. Jupiter's radius used to be twice its current size, and the planet had a magnetic field 50 times ...

After passing Earth, interstellar comet 3I/ATLAS will fly close to Jupiter and its moon Eupheme in March 2026, marking a key moment in its outbound journey ...

3I/ATLAS looking to target Jupiter’s Hill radius is a significant event for astronomers and space scientists. This interstellar object is expected to reach its closest distance to Jupiter on March 16, ...

Mysterious interstellar object 3I/ATLAS could be passing by Jupiter to "seed" the planet with "technological devices." Interstellar object 3I/ATLAS is expected to make its closest pass of the Earth ...

We humans might grow larger as we move from early life to adulthood, but Jupiter has done the opposite. New research offers a snapshot of what the gas giant would have looked like at the beginning, ...

Huge, red "super-Jupiter" exoplanet orbits its star. Since astronomers first looked beyond the solar system three decades ago to discover extrasolar planets, or exoplanets, we've known that planets in ...

A planetary smashup billions of years ago may be to blame for Jupiter’s weirdly puffy core. Recent measurements of Jupiter’s gravitational field indicate that, rather than a dense pit of rock and ice, ...

Jupiter, the solar system's largest planet, used to be even bigger, according to a new study. The cloud of gas and dust from which the sun and planets formed dissipated around 4.5 billion years ago.