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

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 ...

"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: ...

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 ...

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.

The object, a celestial body from another star system, was discovered on Tuesday by the University of Hawaii’s Asteroid ...

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

To get a glimpse of the “Swift Planet,” EarthSky suggests waiting for the sun to set before looking west for the planet ...

Nasa’s Europa Clipper spacecraft will loop around Jupiter on a course that will carry it by Europa 49 times over four years ...