What is a galaxy?

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

Galaxies. A galaxy is made of billions of stars, dust, and gas all held together by gravity. Galaxies are scattered throughout the Universe. They vary. - ppt download

From EarthSky: “What is a galaxy?” – sciencesprings

The Astronomy Cafe - Ask the Astronomer

OLCreate: SEPnet_01: Section 3.1: What is a galaxy?

Galaxies—facts and information

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

Milky Way Galaxy, Size, Definition, & Facts

What is a Galaxy?

What is a Galaxy?, Learn facts about Galaxies

Galaxies, Wiki