Across
- 1. Tailed celestial body (5)
- 3. Large celestial body orbiting the sun
- 5. Planetary grouping
- 7. The cosmos
- 9. Large star system
Down
- 1. a branch of metaphysics that deals with the nature of the universe
- 2. Body orbiting a planet
- 4. Space science
- 6. Our galaxy
- 8. Great balls of fire (plural)