What is a galaxy?

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

ESO Supernova Exhibition — What is a galaxy?

What is a Galaxy?

Galaxies—facts and information

The Milky Way Galaxy

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

Galaxy - Wikipedia

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GALAXIES & BEYOND. What is a galaxy? A galaxy is a very large group of stars held together by gravity. Size: 100,000 ly+ Contain Billions of stars separated. - ppt download

What is a Galaxy? A galaxy is made of billions of stars, dust, and gas all held together by gravity.A galaxy is made of billions of stars, dust, and gas. - ppt

Galaxies—facts and information

What is a Galaxy?

What is a quasar?

Galaxies—facts and information

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