- Script
- ?
- Letters
- typeset
The bottom portion of the inside front cover contains the publisher & indicia information.
- Script
- Robert Kanigher (credited as Dion Anthony) (sourced)
- Pencils
- Carmine Infantino (sourced)
- Inks
- Joe Giella (sourced)
- Colors
- ?
- Letters
- ?
- Editing
- Julius Schwartz (sourced)
- First Line of Dialogue or Text
- Lyle!--I can't let you go like this!
- Genre
- science fiction; superhero
- Characters
- Commando Lyle; Ora; Rax; Commander Artho
- Synopsis
- Lyle has been irradiated with Radium, and, for the safety of others, is forced into space.
- Script
- Gardner Fox (credited)
- Pencils
- Bob Oksner
- Inks
- Bernard Sachs
- Colors
- ?
- Letters
- ?
- First Line of Dialogue or Text
- Give us the latest developments on the plutonium bomb, Dave Hollis--or we'll throw you out into space--to die!
- Genre
- science fiction
- Characters
- Dave Hollis
- Keywords
- plutonium bomb
Inks originally attributed to John Giunta, but confirmed as Bernard Sachs, along with writing and pencilling credits, from Julius Schwartz's editorial records, provided by DC Comics.
- Script
- Jerry Coleman (sourced)
- Pencils
- Gil Kane (sourced)
- Inks
- Joe Giella (sourced)
- Colors
- ?
- Letters
- ?
- Editing
- Mort Weisinger ?
- First Line of Dialogue or Text
- What would you do... if you had a key to the past, and could summon up any creature or person from the shadowy corridors of vanished time?
- Genre
- science fiction
- Characters
- Professor Fosdick; Rawlins; Roger Bacon
- Synopsis
- Professor Fosdick discovers a way to bring living beings - both human and animal - from the deep past into the present time. His notes are stolen by his assistant Rawlins, and three years later dinosaurs, Neanderthal men and Medieval soldiers run rampant through the streets.
- Keywords
- dinosaurs
- Script
- Mort Drucker
- Pencils
- Mort Drucker
- Inks
- Mort Drucker
- Colors
- ?
- Letters
- ?
- First Line of Dialogue or Text
- Andromeda was the daughter of King Cepheus...
- Genre
- non-fiction
- Reprints
Writer and art credits confirmed from Julius Schwartz's editorial records, provided by DC Comics.
- Script
- Mort Drucker
- Pencils
- Mort Drucker
- Inks
- Mort Drucker
- Colors
- ?
- Letters
- ?
Writer and art credits confirmed from Julius Schwartz's editorial records, provided by DC Comics.
- Script
- Julius Schwartz
- Pencils
- Raymond Perry
- Inks
- Raymond Perry
- Colors
- ?
- Letters
- typeset
- Genre
- non-fiction
Two pages of trivia quiz questions about Saturn.
- Script
- John Broome (credited as John Osgood)
- Pencils
- Frank Giacoia
- Inks
- Joe Giella
- Colors
- ?
- Letters
- ?
- Editing
- Julius Schwartz
- First Line of Dialogue or Text
- Strap on your S-64's, men! No telling what we'll run into on this uncharted world!
- Genre
- science fiction
- Characters
- Mark Saunders; Helen
- Synopsis
- The S-64 disintegrator gun allows Earth troops to colonize and contain other worlds with ease. But the name of the inventor has been completely forgotten. In 2219 Mark Saunders left Earth for Venus, and the next five years were spent developing his disintegrator ray. After scores of failures the gun is finally a success. Returning to Earth he attempts to interest manufacturers in its mass production, but they are offered similar inventions every week and none of them have ever worked.
- Reprints
Inks originally attributed to Frank Giacoia, but confirmed as Joe Giella, along with writing and pencilling credits, from Julius Schwartz's editorial records, provided by DC Comics.
- Script
- Mort Drucker (sourced)
- Pencils
- Mort Drucker (sourced)
- Inks
- Mort Drucker (sourced)
- Colors
- ?
- Letters
- ?
- First Line of Dialogue or Text
- Geological surveys have set the age of the Earth at more than two billion years.
- Genre
- non-fiction; math & science
- Reprints