Jupiter, Saturn, Uranus and Neptune did not always have their current positions in the solar system. According to the ...

Saturn holds the record for the most known moons of any planet in the solar system, with at least 146 confirmed satellites on ...

Facts about Jupiter's moon Callisto, the third largest moon in the Solar System and the most heavily-cratered object.

The outer solar system once seemed like a quiet backwater. But a glut of tiny, strange moons with unruly orbits are coming ...

Jupiter's giant moon Ganymede is the only known moon to have its own magnetic field — and it may be heating up in a process "not yet observed anywhere else," new research suggests. This standout ...

(Ianm35/iStock/Getty Images Plus) The Solar System is one of the comforting constants of human existence. No matter what else ...

Our solar system may have hosted up to six giant planets in its first hundred million years, a new study suggests. The ...

The outer planets of the solar system are swarmed by ice-wrapped moons. Some of these, such as Saturn's moon Enceladus, are known to have oceans of liquid water between the ice shell and the rocky ...

Neptune is definitely the odd one out of the gas giants. It's tilted at a strange angle, and its moons are completely ...

Jupiter has 79 moons and is known as the 'king of the planets'. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. Jupiter is the largest planet in ...