We used to think moons were the boring sidekicks of the solar system. For decades, we treated them like cosmic leftovers — cold, dead rocks that did nothing but tag along with their parent planets. We ...

Moons are natural satellites that rotate around planets or asteroids. They come in many shapes, sizes and types. Larger moons are spherical, but others can have an irregular shape or texture. Although ...

Add Yahoo as a preferred source to see more of our stories on Google. Small icy moons in the outer reaches of our solar system may hide boiling oceans underneath their surfaces, a new study finds.

Scientists have discovered seven of the most unusual moons orbiting our solar system’s planets. These moons display phenomena ...

ESAs JUICE mission will study Jupiter, Ganymede, Callisto and Europa. The spacecraft will examine their oceans, geology, ...

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The outer planets of the solar system are swarmed by ice-wrapped moons. Some of these, such as Saturn's moon Enceladus, are known to have oceans of liquid water between the ice shell and the rocky ...

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

Add Yahoo as a preferred source to see more of our stories on Google. Saturn's moon Enceladus photograph as taken by NASA's Cassini spacecraft. (CREDIT: NASA / JPL) Several small worlds beyond Jupiter ...

Why are there moons at the edge of the solar system that cause their rotation axes to fluctuate as if ignoring the laws of ...