Across
- 1. a self luminous body
- 2. the death of a large star
- 3. all space and the matter space contains
- 4. an object with more than four solar molasses
- 5. arms area of stars that spread out
- 6. large group of stars
- 7. model a represent of an object that is accurate
Down
- 1. mass used in astronomy
- 2. galaxy a galaxy with bulge in the center