Across
- 2. a instrument that is used to find out what stars are made of
- 3. what happens in a star every second that creates heat
- 6. the distance light travels in a year
- 8. the study of space
- 10. a huge ball of glowing gas
- 11. a rock that enters the Earth's atmosphere
- 14. stars that make up a picture
- 15. a "dirty iceberg" in space
- 17. a cloud in space
- 19. move in a circle on a central axis.
Down
- 1. a world that orbits a planet
- 4. the repeating path the that an object in space takes around the other one
- 5. a star that explodes
- 7. rocks that are found between mars and Jupiter
- 9. a belief that stars control your life
- 12. move or cause to move in a circle around an axis or center
- 13. a world that orbits a star
- 16. how much an object moved when you look at it from two different angles
- 18. an instrument that makes objects appear closer usually used to look at stars and planets