Social Studies Space and arms race Cold war

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Across
  1. 2. 2 countries in the cold war racing to make _______ weapons
  2. 4. this acronym stands for Mutually Assured destruction, both countries could obliterate each other in an attack
  3. 6. (acronym) was the first to land on the moon
  4. 8. first US orbital space mission _______ 8
  5. 9. this country was the first to go to space
  6. 11. The two countries obtained plans for rockets from this country
Down
  1. 1. first US satellite
  2. 3. man on the moon (last name)
  3. 5. The first and only Nuclear weapon to be used in a war was used on this country
  4. 7. first satellite sent to space
  5. 10. this organization was created to enhance space exploration