Across
- 4. relatively dense clouds of interstellar dust in space.
- 5. a collection of gas, dust, stars and solar systems.
- 7. a galaxy with arms and a dense center swirling around the center.
- 8. The force that pulls mass together.
- 9. a galaxy with no clear shape and was made after two galaxies crashed into one another.
- 10. a system of celestial objects and stars that orbit one another.
Down
- 1. The name of our galaxy
- 2. groups of ten or more stars that formed from the same interstellar cloud.
- 3. a giant cloud of gas and dust in space.
- 6. a galaxy with a clear oval shape and most abundant type.