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 ...

Related: 10 incredible volcanoes in our solar system The solar system formed about 4.6 billion years ago from a giant rotating cloud ... we know today. This model of solar system formation is ...

Earth has experienced 18 galactic years in its lifetime. So, to sum up: we’re orbiting a star within a rotating Solar System, within a galaxy that is rotating in an expanding universe.