What is a galaxy?

Learn all about different types of galaxies in the universe and how they came together.

Galaxies—facts and information

What is a Spiral Galaxy?

The Milky Way galaxy may be much bigger than we thought

What is the Milky Way? - Universe Today

What is a galaxy? - BBC Sky at Night Magazine

Milky Way Galaxy, Size, Definition, & Facts

Galaxies HubbleSite

How Galaxies Work

Galaxy - examples, body, process, Earth, law, form, energy, gas, system

What is a Galaxy?

What is a Galaxy? - Universe Today