- Script:
- Gardner Fox
- Pencils:
- Mike Sekowsky
- Inks:
- Joe Giella
- Colors:
- ?
- Letters:
- ?
- Genre:
- science fiction
- Synopsis:
- David and Helen Palmer are captured by water-breathing aliens who intend to flood the whole world but they are scared off by an atomic bomb test.
- Reprints: show reprint note before migration
Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (April 2007).
- Script:
- Jack Schiff
- Pencils:
- Bernard Baily
- Inks:
- Bernard Baily
- Colors:
- ?
- Letters:
- Ira Schnapp
- Genre:
- fact
- Synopsis:
- Fred learns that there are other ways of participating in his favorite sport of baseball even though he isn't yet good enough to be picked for the team.
published in cooperation with the National Social Welfare Assembly
- Script:
- ?
- Pencils:
- Bill Ely; Gil Kane (illustrations)
- Inks:
- Bill Ely; Gil Kane (illustrations)
- Colors:
- ?
- Letters:
- Ira Schnapp
- Genre:
- science fiction
house ad for House of Secrets (DC, 1956 series) #21 and Mystery in Space (DC, 1951 series) #52
- Script:
- Gardner Fox
- Pencils:
- Sid Greene
- Inks:
- Sid Greene
- Colors:
- ?
- Letters:
- ?
- Genre:
- science fiction
- Synopsis:
- An alien transforms all the men in a town into duplicates of himself so that no one can spot him among the others while he searches for an element that his invading army needs.
Pencils and inks credits from Julius Schwartz's editorial records, provided to the GCD by DC Comics (2 February 2008)
- Script:
- Julius Schwartz ?
- Pencils:
- ? (logo illustration)
- Inks:
- ? (logo illustration)
- Colors:
- ? (logo illustration)
- Letters:
- typeset
answers to scientific inquiries from readers
- Script:
- Julius Schwartz ?
- Pencils:
- ?
- Inks:
- ?
- Colors:
- ?
- Letters:
- ?
- Genre:
- fact
- Script:
- Gardner Fox
- Pencils:
- Manny Stallman
- Inks:
- John Giunta
- Colors:
- ?
- Letters:
- Gaspar Saladino ?
- Genre:
- science fiction
- Synopsis:
- Two interplanetary news reporters keep coming up with new scientific ways of beating each other to print.
Pencils and inks credits from Julius Schwartz's editorial records, provided to the GCD by DC Comics (2 February 2008)