Jupiter is the fastest spinning planet in our Solar System, completing a rotation in less than 10 hours. This rapid spin ...

A distant gas giant the size of 10 Jupiters is now the first planet outside Earth's solar system to be mapped in three dimensions.

Astronomers are gathering evidence of a massive hidden planet lurking beyond Neptune. Trump Cuts Millions After California ...

A coronal mass ejection on another star has been witnessed in its entirety for the first time, revealing that when these ...

Modern astronomy is giving us unprecedented views of the asteroids, comets, and other small bodies that litter our cosmic ...

When you buy through links on our articles, Future and its syndication partners may earn a commission. Planetary scientists are split, oscillating between two main theories that explain the order in ...

Planet Y is the latest in a series of hypothetical solar system planets that scientists have proposed in recent years, all with slightly different characteristics, but collectively believed to be ...

Material around Chiron, a small icy world in the far reaches of the solar system, may be taking shape into a ring system of ...

Webb just spotted a carbon-rich moon factory 625 light-years away, revealing how moons like ours may have first taken shape.

When you see art of our solar system as the planet orbit the sun, you may notice that Earth's orbit has a tilt. It is not a perfect circle. What's more, Earth is not the only planet that displays such ...

LONDON — The search for an unknown planet in our solar system has inspired astronomers for more than a century. Now, a recent study suggests a potential new candidate, which the paper's authors have ...

Our solar system now, once again, officially consists of only eight planets. Although largely debunked, speculation continued ...