Across
- 2. Layer of loose, fragmented material covering the Moon's surface
- 3. Passage of the Moon across Earth’s sky or a telescope’s view
- 4. Scientific study of the Moon’s geology
- 7. Moon phase when more than half is illuminated but not full
- 8. Ocean movements influenced by lunar gravity
- 12. Hemisphere of the Moon not visible from Earth
- 14. Current NASA program aiming to return humans to the Moon
- 16. Dark volcanic rock common on lunar maria
- 18. Long, narrow valley or trench on the lunar surface
- 19. Earth's natural satellite
- 20. Lunar rock type rich in potassium, rare earth elements, and phosphorus
Down
- 1. Light-colored rock dominating the lunar highlands
- 5. Target region for future lunar bases due to water ice deposits
- 6. Dark, flat plains on the Moon formed by ancient lava flows
- 9. Frozen water detected in shadowed lunar craters
- 10. 29.5-day cycle between identical Moon phases
- 11. Wobbling motion allowing us to see slightly more than half the Moon
- 13. Bowl-shaped depression formed by meteor impacts
- 15. Event when Earth or Moon blocks sunlight from the other
- 17. NASA program that landed humans on the Moon