Across
- 2. makes up the whole universe
- 5. composed of particles that don't reflect or absorb light
- 6. is A branch of science that deals with matter
- 7. relates to the origin and development of the universe.
- 8. Completely empty space
- 9. an expert in or student of astronomy.
- 10. is the study of data to extract meaningful insights for business.
Down
- 1. A system of stars and planets
- 3. the study of stars and planets and how they work
- 4. The heat an object gives off