A Galaxy is an enormous collection of stars, bound together by gravity.
Use the links on the side to:
- Discover the difference between Solar Systems, Galaxies, and the Universe.
- Find out how many Galaxies are in the Universe.
- Look at super neat photos of Galaxies.
- Become a galaxy hunter from the comfort of your own computer!
The warped Milky Way. Image credit:NASA/APOD