Across
- 3. Path one body follows around another
- 4. Planet known as Earth’s twin
- 5. Vast island of stars in space
- 7. Icy wanderer with a glowing tail
- 10. Farthest major planet from the Sun
- 12. Earth’s natural satellite
- 13. Stream of charged particles from the Sun
- 15. Largest planet in the solar system
- 18. Planet famous for its rings
- 20. Massive glowing sphere of gas
- 21. Ice giant that rotates on its side
- 22. The only known life-bearing planet
- 23. Cosmic cloud where stars form
- 25. Dwarf planet in the Kuiper Belt
Down
- 1. The spinning of a planet around its axis
- 2. Force that pulls objects together
- 6. Rocky object orbiting the Sun
- 8. Shooting star streaking across the sky
- 9. Tool for observing distant objects
- 11. One celestial body blocking another
- 14. Closest planet to the Sun
- 16. Pattern of stars forming a picture
- 17. The red planet with giant volcanoes
- 19. Everything that exists as a whole
- 24. Explosion marking a star’s death