The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...

Astronomers have uncovered a massive new trans-Neptunian object, 2017 OF201, lurking at the edge of our solar system. With an ...

Astronomers have discovered a rare solar system in the Milky Way with six planets orbiting in perfect rhythm like a cosmic orchestra.

The origin of the differing tilts in the orbits of the planets in our solar system may have been revealed through the ...

The discovery of the new planets 100 light years away could be the key to unlocking mysterious of the planets in our own solar system, the researchers said in a new study.

A new trans-Neptunian object, 2017 OF201, has been found with a vast orbit and potential dwarf planet size. The finding hints ...

From the scorching surface of Mercury to the icy edges of Neptune, our planetary neighborhood is full of wonders. The order of the planets isn’t just trivia—it tells a story about temperature, ...

New discoveries of objects in the Kuiper Belt have also presented challenges for the Planet Nine theory. The latest is known ...

The Solar System is home to a remarkable range of planets, from tiny rocky worlds to massive gas giants. But just how big are ...

Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a precious peek into the dawn of our own solar system.

Go look at The Planets Today. Notice anything strange? The planets are all on one side of the Solar System, with Earth somewhere in the “middle” of the cluster. While this is normal, natural ...