Across
- 2. the biggest planet in our solar system
- 3. when a dying star explodes
- 5. the point in space directly above you
- 6. rock and dust that will fly through space
- 9. the first man to the moon
- 11. the hottest planet
- 13. a person who travels into and explores space
- 15. venus
- 17. measurement of how fast light travels
- 18. the father of astronomy
- 19. a chemical in the air we breath
Down
- 1. the third layer in the earths atmosphere
- 4. a form of transport people use to get in and out of space
- 7. there are eight in our solar system
- 8. the ruler of the death star
- 10. when the moon gets in the way of the sun
- 12. group of stars and planets
- 14. the name of a telescope
- 16. a very large star