The solar system has many more moons than the one we can see in the sky. But how many do we actually know about? And how many ...

The close size between Pluto and Charon which makes Charon the largest known satellite compared to its parent body, and they are often referred to as a double dwarf planet system.

Dark matter, the elusive substance that makes up around 27% of the universe, remains one of the most intriguing mysteries in ...

The Solar System has a total of 419 known moons around planets. If we count dwarf planets, asteroids, and other worlds, the ...

'If the Moon Were Only 1 Pixel' - a real deal solar system simulator How do you picture the solar system? Most of us imagine the eight planets as colorful balls of varying sizes moving in orbits ...

Pluto’s largest moon, Charon, is so large relative to Pluto that the two orbit a mutual point in space. Eris’s sole known moon, Dysnomia, doesn’t quite compare size-wise.

A team of astronomers announced Tuesday that a new satellite measuring roughly 90 football fields across was discovered ...

Around 4 billion years ago, an asteroid hit the Jupiter moon Ganymede. Now, a Kobe University researcher realized that the Solar System's biggest moon's axis has shifted as a result of the impact ...