Across
- 1. Huge group of stars
- 4. Path around a planet or star
- 5. Closest planet to the Sun
- 8. Largest planet
- 11. Our home planet
- 12. Planet that spins on its side
- 15. Person who travels in space
- 18. Cloud of gas and dust in space
- 19. Object with extremely strong gravity
- 21. The universe
- 23. Everything that exists
- 24. Planet with famous rings
- 25. When one space object blocks another
Down
- 2. Rocky object in space
- 3. Icy object with a tail
- 6. Hottest planet
- 7. Blue, distant planet
- 9. Force that pulls objects together
- 10. The red planet
- 13. Glowing ball of gas
- 14. Earth’s natural satellite
- 16. Tool for viewing distant objects
- 17. Vehicle used to reach space
- 20. Area beyond Earth’s atmosphere
- 22. Star at the center of our system