Solar System Our star (Sun), the planets, many moons, and other small bodies that ALL travel around the Sun
Solar System
A giant structure that contains hundreds of billions of stars. Galaxy A giant structure that contains hundreds of billions of stars.
Spiral Galaxy A galaxy whose arms curve outward in a pinwheel pattern. Contains solar systems and nebulae (gas and dust). Our Galaxy: MILKY WAY
Spiral Galaxy
A galaxy shaped like a flattened ball, containing only old stars. Elliptical Galaxy A galaxy shaped like a flattened ball, containing only old stars. Example: M87 galaxy
Elliptical Galaxies
Irregular Galaxy A galaxy that does not have a regular shape. Example: The Large Magellanic Cloud
Irregular Galaxy
Our Cluster or Galaxy Group Local Group
Supercluster Virgo
ALL space and everything that is in it. Universe ALL space and everything that is in it.