Across
- 5. a person who travels beyond the earth's atmosphere
- 7. a science that deals with matter and energy
- 8. something that is related
- 9. coming from the stars
- 10. a galaxy other than the Mily Way
Down
- 1. a circular path
- 2. large group of stars
- 3. relating to the earth or its inhabitants
- 4. the configuration of stars
- 6. caused by heat