Across
- 3. Organized space journey with a clear objective
- 5. Mysterious regions where not even light escapes
- 10. Human drive to seek the unknown
- 12. A massive sphere of hot plasma that produces light
- 17. Trained traveler who ventures into space
- 19. The curved path of an object around a planet
- 20. Instrument used to study distant celestial bodies
Down
- 1. Scientific study of planets, stars, and the cosmos
- 2. The “Red Planet” often targeted for exploration
- 4. New methods that advance science and space travel
- 6. The fiery beginning of a rocket’s journey
- 7. The ordered whole of space and everything in it
- 8. The boundary beyond Earth’s atmosphere
- 9. The horizon of what is yet to come
- 11. The invisible force that keeps planets in motion
- 13. The only known planet with life
- 14. Machines circling Earth that send signals
- 15. Celestial collection of stars, dust, and gas
- 16. The vast expanse beyond Earth
- 18. The act of uncovering what was hidden