Across
- 2. - Hidden riches (8 letters)
- 4. - Tall African mammal (7 letters)
- 6. - Electric discharge during a storm (10 letters)
- 7. - Eighth planet from the sun (7 letters)
- 9. - Space explorer (9 letters)
- 10. - Precious gemstone (7 letters)
- 12. - Colorful talking bird (6 letters)
- 15. - Two-wheeled vehicle (7 letters)
- 17. - Tall yellow flower (10 letters)
- 19. - Massive collection of stars (6 letters)
Down
- 1. - Largest planet in the solar system (7 letters)
- 3. - Fastest land animal (7 letters)
- 5. - Spacecraft for launching into orbit (6 letters)
- 8. - Festive celebration (8 letters)
- 11. - Tree-dwelling primate (6 letters)
- 13. - Essential gas for breathing (6 letters)
- 14. - Celestial event (7 letters)
- 15. - Insect with delicate wings (10 letters)
- 16. - Sweet confection (9 letters)
- 18. - Device for capturing images (6 letters)