As more of the solar system has been explored and imaged, all kinds of geographical features have been mapped on many of our ...

Discover the order of planets in the solar system. From Mercury to Neptune, explore our solar system and learn more about our cosmic home. The solar system is our cosmic neighborhood, made up of ...

Our solar system may have a ninth planet after all, following the declassification of Pluto nearly two decades ago, ...

A 9th planet in our solar system might be found — and no, it’s not Pluto - Is there another planet out there? Researchers say ...

Astronomers have detected a promising sign of a ninth planet lurking at the the farthest reaches of the Solar System.

With a lot of talk about space recently, have you ever wondered which are the hottest planets in the solar system? You'd think ... 36 million miles away from our shining star.

Discovered in 1930, Pluto was long considered our Solar System's ninth planet, but was unseated in 2006 after the discovery ...

Probing these wacky celestial bodies can help us understand how conditions beyond our solar system may yield planets vastly different from our own, said study author Thomas Baycroft with the ...