1

Flowers of Death

1952-01-05

2

Cosmic Smoke Guns

1952-01-12

3

Lost in the Snow Cap Region of Mars

1952-01-19

4

Explosion on Morehouse Five

1952-01-26

5

The Evil Guardian of Harpola

1952-02-02

6

Hit by a Meteorite

1952-02-09

7

Planetoid Plot

1952-02-16

8

Victim of Amnesia

1952-02-23

9

The Lieutenant's Revenge

1952-03-01

10

The Mind Readers

1952-03-08

11

Slaves of the Exonium Mine

1952-03-15

12

Abandoned in Outer Space

1952-03-22

13

The Great Bank Robbery

1952-03-29

14

The Mysterious Moonquakes

1952-04-05

15

The Phantom Fleet

1952-04-12

16

Trouble on Titan

1952-04-19

17

Sacrifice to the Moon God

1952-04-26

18

Uncertain Death

1952-05-03

19

nvasion

1952-05-10

20

A Threat to the United Planets

1952-05-17

21

The Threat of the Thormanoids

1952-05-24

22

Jungle Jeopardy

1952-05-31

23

The Scheming Sibling

1952-06-07

24

Danger on Mars

1952-06-14

25

Mission to Mercury

1952-06-21

26

The Deadly Ray Gun

1952-06-28

27

The Force Barrier

1952-07-05

28

The Iron Fist

1952-07-12

29

The Derelict Space Station

1952-07-19

30

The Mystery of Ancient Egypt

1952-07-26

31

Mystery of the Pirate Ship

1952-08-02

32

Emergency Flight to Mercury

1952-08-09

33

Blackmail at Lake Azure

1952-08-16

34

The Hidden Map

1952-08-23

35

The Green Mold of Mars

1952-08-30

36

The Galaxtic War

1952-09-06

37

The Energy Thief

1952-09-13

38

Sabotage of the Jupiter Run

1952-09-20

39

The Star Raiders

1952-09-27

40

The Code Breakers

1952-10-04

41

Errand of Mercy

1952-10-11

42

Underwater Treachery

1952-10-18

43

The Electronic Man

1952-10-25

44

Treachery on Terra Five

1952-11-01

45

Frontier Epidemic

1952-11-08

46

Powerdive

1952-11-15

47

Three Exiles

1952-11-22

48

The Shakedown

1952-11-29

49

The Human Trap

1952-12-06

50

The Chase in Time

1952-12-13

51

The Deadly Sunbeam

1952-12-20

52

The Conspiracy

1952-12-27