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21. Eric Burgess ‎(1,526 views)
22. Kids to Space - by Lonnie Schorer ‎(1,466 views)
23. Arthur Charles Clarke ‎(1,451 views)
24. Buzz Aldrin ‎(1,434 views)
25. Yuriy Alekseyevich Gagarin ‎(1,371 views)
26. What Do We Know of the Canadian Rocket Society? by Frank H. Winter ‎(1,370 views)
27. Donald A. Beattie ‎(1,369 views)
28. Almanac ‎(1,350 views)
29. Kurt Richard Stehling ‎(1,346 views)
30. George Chetwynd Griffith ‎(1,342 views)
31. Orbital Refueling Feasibility Study and Design Concept ‎(1,328 views)
32. Apollo astronaut geology training and simulation ‎(1,295 views)
33. Walter R. Dornberger ‎(1,295 views)
34. William Reid Pogue ‎(1,290 views)
35. Wernher von Braun - The Frederick I Ordway Rocket Team Interview Tapes ‎(1,270 views)
36. Attributions ‎(1,262 views)
37. Hardware ‎(1,256 views)
38. Space Journal Magazine ‎(1,228 views)
39. Wernher von Braun ‎(1,211 views)
40. Helmut Arthur Hoeppner ‎(1,205 views)

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