01. Flowers of Death
No details
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January 5, 1952
02. Cosmic Smoke Guns
No details
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January 12, 1952
03. Lost in the Snow Cap Region of Mars
No details
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January 19, 1952
04. Explosion on Morehouse Five
No details
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January 26, 1952
05. The Evil Guardian of Harpola
No details
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February 2, 1952
06. Hit by a Meteorite
No details
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February 9, 1952
07. Planetoid Plot
No details
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February 16, 1952
08. Victim of Amnesia
No details
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February 23, 1952
09. The Lieutenant's Revenge
No details
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March 1, 1952
10. The Mind Readers
No details
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March 8, 1952
11. Slaves of the Exonium Mine
No details
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March 15, 1952
12. Abandoned in Outer Space
No details
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March 22, 1952
13. The Great Bank Robbery
No details
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March 29, 1952
14. The Mysterious Moonquakes
No details
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April 5, 1952
15. The Phantom Fleet
No details
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April 12, 1952
16. Trouble on Titan
No details
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April 19, 1952
17. Sacrifice to the Moon God
No details
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April 26, 1952
18. Uncertain Death
No details
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May 3, 1952
19. nvasion
No details
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May 10, 1952
20. A Threat to the United Planets
No details
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May 17, 1952
21. The Threat of the Thormanoids
No details
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May 24, 1952
22. Jungle Jeopardy
No details
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May 31, 1952
23. The Scheming Sibling
No details
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June 7, 1952
24. Danger on Mars
No details
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June 14, 1952
25. Mission to Mercury
No details
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June 21, 1952
26. The Deadly Ray Gun
No details
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June 28, 1952
27. The Force Barrier
No details
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July 5, 1952
28. The Iron Fist
No details
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July 12, 1952
29. The Derelict Space Station
No details
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July 19, 1952
30. The Mystery of Ancient Egypt
No details
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July 26, 1952
31. Mystery of the Pirate Ship
No details
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August 2, 1952
32. Emergency Flight to Mercury
No details
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August 9, 1952
33. Blackmail at Lake Azure
No details
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August 16, 1952
34. The Hidden Map
No details
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August 23, 1952
35. The Green Mold of Mars
No details
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August 30, 1952
36. The Galaxtic War
No details
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September 6, 1952
37. The Energy Thief
No details
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September 13, 1952
38. Sabotage of the Jupiter Run
No details
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September 20, 1952
39. The Star Raiders
No details
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September 27, 1952
40. The Code Breakers
No details
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October 4, 1952
41. Errand of Mercy
The crew miscalculates, and instead of going back in time to 1952, they end up in Nazi Germany in 1942 in the middle of a world war.
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October 11, 1952
42. Underwater Treachery
No details
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October 18, 1952
43. The Electronic Man
No details
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October 25, 1952
44. Treachery on Terra Five
No details
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November 1, 1952
45. Frontier Epidemic
No details
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November 8, 1952
46. Powerdive
No details
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November 15, 1952
47. Three Exiles
No details
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November 22, 1952
48. The Shakedown
No details
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November 29, 1952
49. The Human Trap
No details
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December 6, 1952
50. The Chase in Time
No details
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December 13, 1952
51. The Deadly Sunbeam
No details
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December 20, 1952
52. The Conspiracy
No details
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December 27, 1952