Across
- 2. relating to the heavens or skies
- 4. a spaceship to travel in space
- 6. ice and dust ball
- 8. the path a planet travels around the sun
- 12. has to do with the moon
- 14. a measure of distance in space
- 16. small rocky objects that orbit the sun
- 17. a straight line around which Earth turns on
- 18. the turning of earth
- 19. a kind of star formation
- 20. Earth is in its own, milky way
Down
- 1. shooting stars
- 3. a single turn the Earth makes every year that in its orbit around the sun
- 5. Earth, space and all things in it
- 7. turns from day to night
- 9. something to see the stars with
- 10. movement, something that moves around
- 11. a man-made object that orbits Earth
- 13. the study of space
- 15. has to do with the sun