| Issue | #49 |
| Published | February 1959 |
| Cover Price | 0.10 USD |
| Pages | 36 |
| Editing | Julius Schwartz |
| Notes | Cover pencils and inks credits from Julius Schwartz's editorial records, provided to the GCD by DC Comics (25 January 2008) |
| Genre | science fiction |
| Pencils | Gil Kane (signed) |
| Inks | Gil Kane (signed) |
| Notes | Cover pencils and inks credits from Julius Schwartz's editorial records, provided to the GCD by DC Comics (25 January 2008) |
| Genre | science fiction |
| Script | Otto Binder |
| Pencils | Mike Sekowsky |
| Inks | Joe Giella |
| Notes | Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (April 2007). |
| Reprinted | in Mysteries in Space: The Best of DC Science Fiction Comics (Simon and Schuster, 1980 series) #nn (October 1980); in From Beyond the Unknown (DC, 1969 series) #9 February-March 1971 |
| Genre | science fiction |
| Script | Otto Binder |
| Pencils | Manny Stallman |
| Inks | John Giunta |
| Notes | Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics (April 2007). |
| Reprinted | In From Beyond the Unknown (DC, 1969 series) #10 (April-May 1971) |
| Genre | science fiction |
| Script | John Broome |
| Pencils | Carmine Infantino |
| Inks | Joe Giella |
| Notes | Pencils and inks credits from Julius Schwartz's editorial records, provided to the GCD by DC Comics (25 January 2008) |
| Genre | Fact |
| Notes | Information for this sequence from Arthur Lortie, September 2008. Location of this sequence within this issue is unknown. |
| Reprinted | from Strange Adventures (DC, 1950 series) #17 [recolored & art altered] |