Astronomers have discovered a rare in-sync solar system with six planets moving like a grand cosmic orchestra, untouched by outside forces since their birth billions of years ago. The find ...

Astronomers have discovered a rare in-sync solar system with six planets moving like a grand cosmic orchestra, untouched by outside forces since their birth billions of years ago.

PLANET MAKER. In this artwork showing the early solar system, an enormous dust disk stretches around the Sun and serves as a breeding ground for new planets as material clumps together.

There are 8 planets in the solar system, each unique in size, distance, and composition. Learn about all the planets in order from the Sun, their characteristics, and key facts that make them ...

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 ...

With thousands of exotic exoplanets known, the worlds of our solar system may seem rather dull. Trust us, they’re not.

According to a new proposal, the solar system has 12 planets instead of the familiar 9, with several dozen more to come.

Although hundreds, or perhaps thousands, more solar system bodies may eventually join the list, the IAU officially recognizes just five dwarf planets at the moment.

We also have the rocky material, which is made up of iron, oxygen, silicone, and trace amounts of other elements. But what about the other planets in our solar system? What are they made of?

If you are a budding astronomer or simply enjoy watching the sky through a telescope, you probably have an interest in all of the planets in our solar system. There are a total of eight planets ...