How big are the planets and how far away are they compared to each other? See how the sizes of planets and the distances between them compare. And find out why it's so hard to create a scale model of ...

Have you ever wondered just how big space really is? It’s huge. In fact, it’s astronomical! The Colorado Scale Model Solar System depicts the Sun, the planets, and the distances between them all on ...

Although key details are missing from the story of how our Solar System formed, recent discoveries are helping scientists fill in the blanks ...

From meteorites that impact Earth, to a moon that orbits backwards, to an imposter lurking in the asteroid belt, a variety of strange, wandering worlds are rewriting what we know – and even how we ...