Across
- 1. The Vacuum of space
- 3. orbits earth
- 4. someone who goes to space
- 5. A series of stars together
- 8. Stars and solar systems
- 10. what earth does to the sun
Down
- 2. a way to talk with others
- 6. infinite void
- 7. drifting rocks in space
- 9. layers of ............