Saturn reigns supreme when it comes to the number of moons orbiting any solar system planet. Including the 128 ...

Far from the Sun’s heat, orbiting the outer planets of the solar system, are moons with oceans of liquid water beneath their frozen surfaces. Keith Cooper finds out how planetary scientists are ...

If you look up on a clear night, the brightest and largest object in the sky will probably be the moon. And unless you have a decent telescope, it is the only natural satellite you can see with your ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

There is something comforting to the idea that even within our own little solar system, through which we have sent probes and rovers and other astonishing bits of space tech, there remains a hefty ...

Several small worlds beyond Jupiter are not just frozen rubble. Beneath their shining skins, many hide oceans of liquid water. New research says those seas do not always stay calm. When the ice lids ...

While Io, the most volcanically active moon in the solar system, appears completely dry and devoid of water ice, its neighbor ...

In this quiz, you'll test your cosmic knowledge by matching each moon to the planet it calls home. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works ...