Across
- 2. first manned moon landing
- 3. first American to orbit the Earth
- 4. first human to orbit the Earth
- 6. first American in space
- 7. space probe that flies past Mars
- 10. lands on Venus in 1970
Down
- 1. first woman in space
- 5. launched in 1957 by the Soviets
- 8. artificial satellite launched by the U.S.
- 9. Soviet probe that reaches the moon in 1959