Astronomy - History of Space Exploration

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Across
  1. 3. last name of first untethered astronaut in space
  2. 8. spacecraft that carried tortoises in orbit of moon
  3. 9. First satellite ever launched
  4. 11. this spacecraft transmitted the first photo from the surface of the moon
  5. 13. first robotic rover on Mars
  6. 14. Last name of first person to walk in space
Down
  1. 1. This satellite discovered radiation belts in Earth's atmosphere
  2. 2. first spacecraft to orbit moon and return to earth
  3. 3. American spacecraft which journeyed close to mars and captured the first photo of Mars from space
  4. 4. first spacecraft with crew to land on moon
  5. 5. The launching of this satellite started the space race
  6. 6. Last name of first human in space
  7. 7. Mars rover which discovered organic compounds on Mars
  8. 10. Most influential space telescope
  9. 12. type of landing pathfinder made on Mars