What is a galaxy?

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

What is a galaxy? - Urban Astronomer

What is a galaxy? - BBC Sky at Night Magazine

How Many Galaxies Are There in the Universe? - The Planets

Galaxy, Definition, Formation, Types, Properties, & Facts

Galaxies HubbleSite

How many galaxies are in the Universe?

What is a galaxy? - BBC Sky at Night Magazine

What is a Galaxy? — Astronoo

Solar System, Galaxy, Universe: What's the Difference?

Galaxy presentation

Galaxy Definition Picture Encyclopedia of Astronomy

How Galaxies Work

What Is A Galaxy?

What is a Galaxy Types of Galaxies and Characteristics