Which solar system model is best? For as long as humans could look up at the night sky, we’ve been fascinated with the stars. How far away are they? Where did they come from? What secrets do they hide ...

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 ...

NASA has unveiled a new way for the public to follow interstellar comet 3I/ATLAS as it moves through the solar system, integrating the object into its interactive Eyes on the Solar System app. The ...

The universe is supposed to look the same no matter where you stand. That idea, known as the cosmological principle, sits at ...

Introduction Have you ever built a model of the solar system for school—or even just seen a picture of the solar system in a book? The planets are usually pretty close together—and close to the sun.

The solar system is difficult to show correctly. Why? It is difficult because the size of things are vastly different. Let me use units common in solar-system astronomy, the Astronomical Unit (or AU).