Space Exploration

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Across
  1. 2. US and European joint mission to Saturn
  2. 5. final line for the space race
  3. 6. SpaceX capsule
  4. 9. NASA program to return to the Moon
  5. 11. first spacecraft in interstellar space
  6. 15. Apollo moon rocket
  7. 16. first American space statation
  8. 17. can make oxygen out of the Martian atmosphere
  9. 20. part of the Space Shuttle that flies in space
  10. 23. first space shuttle disaster
  11. 25. an enormous star
  12. 28. first American in space
  13. 30. how much energy a star produces
  14. 31. Discovered radiation belts around Earth
  15. 33. cloud of gas and dust
  16. 34. first man in orbit
  17. 35. force that must be overcome to get to space
  18. 36. first artificial satellite
Down
  1. 1. visited by Venera
  2. 3. last space shuttle to fly
  3. 4. prepared the way for Apollo
  4. 7. a space probe that can crawl from place to place
  5. 8. Russian dog who sadly died in space
  6. 10. first and smallest Mars rover
  7. 12. first man on the Moon
  8. 13. largest manmade spacecraft (abbreviation)
  9. 14. spacecraft currently orbiting Jupiter
  10. 17. fourth planet from the Sun
  11. 18. completed the first helicopter flight on Mars
  12. 19. American satellite failed explosively
  13. 21. first woman in space
  14. 22. carries a payload up into space
  15. 24. a smallish star
  16. 26. famous space telescope
  17. 27. Russian equivalent of "astronaut"
  18. 29. first American to orbit the Earth
  19. 32. this many astronauts were chosen for Project Mercury
  20. 36. workhorse Russian spacecraft