Galaxies

For most people on Earth, it can be hard to think that there's much material outside our Solar System, or even our Sun and Moon. After all, for the most part, we see both the Sun and Moon once a day every day. Similarly, for amateur astronomers, the other bodies of the Solar System and a handful of bodies are visible via telescope. In all, it may seem like the reality we live in is quite small, relatively speaking.

However, the Sun itself is nothing but a small piece, a speck, in the fabric of an entire galaxy, known as the Milky Way to us. Our Milky Way galaxy is a system of millions upon millions of stars. However, the Milky Way Galaxy isn't all there is. Outside the Milky Way galaxy, there are trillions of other galaxies with their own millions of stars. In all, this makes our universe extremely gargantuan, far beyond the initial human thought that all we will come to know is what our local astronomical objects can tell us.

Now, with so many galaxies, how can we possibly describe them? Well, it turns out that many of the galaxies(of course, possibly not all) follow some basic and structures, which will be discussed in the next section. Here are the links to the following sections:

Galactic Shapes

Galactic Structure

Hubble's Law