Across
- 4. reusable spacecraft for transporting people, satellites and other materials to space
- 6. first probe to travel through an asteroid belt
- 10. Project that was the final step in U.S. program to reach the moon
- 13. cooperation and resources of 16 countries
- 17. Project that was the 1st step in the Moon race
- 18. Space telescope located outside of Earth's atmosphere
Down
- 1. 1st U.S. citizen to orbit Earth
- 2. Telescopes that use a concave mirror
- 3. Waves that cary energy through space and matter
- 5. Permanent places in space for humans to live and work
- 7. Telescopes that have convex lenses
- 8. was a Soviet Union astronaut that was the first human in space
- 9. On July 20, 1969, ______________ landed on the moon surface.
- 11. was the the 2nd man to step on the moon right behind Neil Armstrong
- 12. First artificial Satellite that Soviet Union launched into space
- 14. Travels freely in space gathering information
- 15. Will explore Saturn and its largest moon Titan
- 16. Any object that revolves around another object in an orbit