Across
- 4. Movement around the sun
- 7. The force that pulls objects together
- 9. Earth's natural satellite
- 11. The layer of gases surrounding a planet
- 12. The partial outer shadow
- 14. The farthest planet from the sun
- 16. The path of a planet
- 17. Theory that the sun is the center
- 20. An object that emits its own light
- 21. A space rock that hits the ground
- 23. The time taken for one full rotation
- 24. The center of the solar system
- 26. The hottest planet
- 28. The study of celestial bodies
- 29. The shape of a planetary orbit
- 32. The name of our galaxy
- 36. The red planet
- 37. Rocky planets like Earth
- 38. Movement spinning on an axis
Down
- 1. The smallest planet
- 2. The sun's outermost layer
- 3. The largest moon in the solar system
- 5. When one object hides another in space
- 6. Saturn's largest moon
- 8. The visible surface of the sun
- 9. Often called a shooting star
- 10. The time for one revolution of Earth
- 13. Giant gas planets
- 15. The rise and fall of sea levels
- 18. The sun's atmosphere above the photosphere
- 19. The largest planet
- 22. The planet with life
- 25. The darkest part of a shadow
- 27. The coldest planet
- 30. A well-known dwarf planet
- 31. An object that orbits a planet
- 33. The effect of Earth's rotation facing the sun
- 34. The planet with rings
- 35. A celestial body with a tail
- 39. Rocks located between Mars and Jupiter