Across
- 4. Lump of rock that orbit the Sun
- 5. Moon blocks out Sun
- 11. Our star
- 13. Gives spacecraft thrust
- 14. Human spaceflight program
- 18. Trained to travel in spacecraft
- 19. Space agency.
- 20. Used for weather, radio, tv, internet, etc.
- 21. Exploded
- 22. Massive explosion
- 24. The red planet
- 26. First animal to orbit the Earth
- 27. Biggest planet in Solar System
- 28. American space company
Down
- 1. Known for its rings.
- 2. First planet
- 3. Satellite furthest from Earth
- 6. Unit of measurement for huge distances in space
- 7. Poseidon's planet
- 8. The fastest thing in the universe
- 9. Bright objects with long tails
- 10. Hottest planet
- 11. Launched the first satellite.
- 12. Earth's satellite
- 15. The former planet
- 16. Early maker of telescopes
- 17. 3rd rock from the sun
- 22. 2nd on moon.
- 23. Nothing can escape it.
- 25. Said Sun was at center of the Universe