born in the 60s space race

12345678910
Across
  1. 3. - Unmanned NASA missions to capture images of the moon
  2. 6. - Surface material on the moon
  3. 8. - Safe return of a spacecraft to Earth's ocean
  4. 9. - Path followed by a satellite around a celestial body
Down
  1. 1. - First human in space (Surname)
  2. 2. - NASA's program to develop space travel techniques
  3. 4. - Soviet spacecraft that carried Yuri Gagarin
  4. 5. - Pertaining to the moon
  5. 7. - NASA's space program for moon missions
  6. 10. - Second human to orbit the Earth (Surname)