The Oort cloud is a shell of icy objects that forms the very outskirts of our Solar System. Recently, a group of researchers discovered that the inner portion of the Oort cloud likely has spiral arms ...

Early in our Solar System’s history, bits of icy debris were scattered and then gradually coaxed into a spiral alignment in ...

A giant wave of undulating gas and dust appears, per new research, to have engulfed our Solar System millions of years ago.

The solar system was literally turning itself inside ... In this view the scarred surface of the moon is lingering testimony to a period of epic mayhem. Disturbing the GiantsThe Late Heavy ...

The first time you may have heard the term ‘dwarf planet’ was when Pluto got demoted to one in 2006 (RIP). However, we actually have six in our Solar System. Pluto, Ceres, Makemake, Haumea, and Eris ...

At an epic timescale "comparable to the age of the solar system," which is 4.6 billion years old, the researchers believe that the spiral arms formed when "small bodies" were pushed out of the ...

Interstellar material has been discovered in our solar system, but researchers continue to hunt for where it came from and ...

If you like it then you should put a ring on it. Saturn is home to the Solar System’s most epic ice rink. Being so far from the Sun, the water in its rings is frozen into ice. It is one of four ...

They reveal the solar system and our place within it to be far more dramatic then we could ever have imagined. Meet the cast of characters below and go on an epic journey through our solar system.

There are scads of other icy worlds residing in the Kuiper Belt, celestial leftovers from the formation of our solar system. For New Horizons, the gathering of more exploration science is ...