Across
- 4. 4/4 of a moon
- 5. a person who goes into space
- 7. a place that is rounded into a sphere
- 8. how the universe was made
- 11. a planet with rings around it
- 13. 1/4 of a moon
- 15. a planet starting with the letter U
- 16. a planet we have never been on
- 17. the planet we live on
- 18. a billion years in space
- 19. something you travel to space in
Down
- 1. 2/4 or 1/2 of a moon
- 2. a weight in space
- 3. the big glowing ball in the sky
- 6. something you can see small things turn into big things in space
- 9. a star in the north
- 10. a black hole than is skinnier and thinner
- 12. the place inside of a universe
- 14. the largest planet in our solar system
- 20. a big ball of light passing by at night