The solar system is a vast and mysterious place filled with wonders that continue to intrigue scientists and enthusiasts ...

"I think that there are probably about 10,000 moons in the solar system," Ashton said. But there is no telling how long it could take us to find them all. Editor's note: ...

Like all moons in the outer solar system, it's mostly made of water ice, but its surface is unusually dark. When Cassini flew past it measured its density to be 55% that of water — its interior ...

We have a whole lot of weird moons in the Solar System. We have hot moons and cold moons. There's a moon with liquid and many moons that are dusty. One planet has a walnut moon, and another has potato ...

There's a new moon king in our solar system: 12 new moons were discovered around Jupiter, which makes it the planet with the most moons. Jupiter is already the biggest planet in our solar system.

The solar system’s smallest, innermost planet will resemble a tiny ... Nearly a week after Fourth of July fireworks ...

A meteor shower, a planet sighting, and a full moon. Here's how to see all of space's eye-catching activity in July.

Our Solar System contains some exotic and fascinating moons – but if this one 635 light years away is real, it could take the cake.

How did Earth, alone among the Solar System's rocky planets, become the home for life? How, among all this frigid ...