Across
- 2. – Related to space observation
- 5. – First successful U.S. satellite
- 7. – Radiation detection device
- 12. – Disease protection process
- 13. – Early TV recording method
- 14. – Soviet Moon probe series
- 15. – High-altitude region studied
Down
- 1. – TV screen display
- 3. – Measures TV and radio waves
- 4. – Full name of polio
- 6. – Early U.S. rocket
- 8. – Light particle in TV screens
- 9. – Oral polio vaccine form
- 10. – Soviet launch site
- 11. – First name of Salk