Across
- 2. – Early communications satellite
- 5. – First human in space
- 6. – New TV frequency band
- 7. – Revolutionized entertainment
- 11. – Key to modern electronics
- 12. – U.S. satellite program
- 13. – First artificial satellite
- 14. – Early TV recording method
Down
- 1. – Polio prevention method
- 3. – Protection through vaccination
- 4. – Rocket stage for launch
- 8. – U.S. space agency formed
- 9. – Tube in early televisions
- 10. – Soviet space program
- 15. – Polio vaccine developer