How do you weigh a planet you can't see? Astronomers may have the answer and it involves "reading between the rings," the ...

The early solar system may have been far more chaotic than we ever imagined. A new study published in Icarus suggests that ...

Our solar system has two ice giants, Uranus and Neptune, but there may have been a third. According to a new study published ...

Four-and-a-half billion years ago, a massive world—possibly as big as the moon or even Mars—orbited our sun before crashing ...

Scientists have discovered a bizarre planetary system where a rocky world orbits farther out than giant gas planets, defying ...

(CN) — A newly discovered system of six planets, about 100 light-years away from Earth, may offer a rare chance to study how solar systems and even planets develop and evolve. The six exoplanets orbit ...

New research suggests the moons of Jupiter and Uranus may hint that our planetary neighborhood once had a third ice giant.

(WHTM) – When you look into the night sky, you’ll see planes flying by, stars twinkling, and sometimes you’ll see planets. Mercury has 88 days in a year and is a terrestrial planet. The size of ...

Scientists may have identified one of the Solar System’s most important “planet factories” hidden just beyond Jupiter.

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 ...