There may be a clear winner in the race between Jupiter and Saturn for the most moons in the Solar System. Saturn officially ...

Today, Muinteoir Cliona told us about all the planets in the solar system and made a cool planet mobile. One of the planets we can see most nights is of course the moon. One of the most important ...

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 ...

What is the difference between a moon and a planet? Trick question! According to scientific definitions, there often isn’t much of a difference at all. That might seem counterintuitive, but it’s true.

This article was originally featured on The Conversation. Are planets in the solar system that are closer to the Sun older than the ones further away? – Gavriel, age 10, Paducah, Kentucky A cloud of ...

This discovery was made by two of NASA’s most celebrated telescopes. This illustration provided by Dan Durda shows the exoplanet Kepler-1625b with a hypothesized moon. On Thursday, Oct. 4, 2018, two ...

Is there a massive undiscovered planet on the outer reaches of the Solar System? The idea has been around since before the discovery of Pluto in the 1930s. Labelled as planet X, prominent astronomers ...

As far as planets go, they don't get much more iconic than Saturn: a huge golden ball encircled by gigantic rings. There's nothing else quite like it in the Solar System. Right now, it's hard to see ...