All the vocabulary that you need to know on galaxies

Question Answer
Spiral Galaxy A galaxy that has a center bulge and arms
Elliptical Galaxy A galaxy where few new stars form
Irregular Galaxy A galaxy with no defined shape
Milky Way Our galaxy, a spiral galaxy
Galaxy A large group of gas, dust, and billions of stars
Center Bulge A group of old stars, part of a spiral galaxy
Arms Where younger stars are, part of a spiral galaxy