| Issue | #251 |
| Published | May 1972 |
| Cover Price | 0.25 |
| Pages | 52 |
| Editing | Julius Schwartz |
| Notes | Cover art credits confirmed from Julius Schwartz's editorial records, provided by DC Comics |
| Characters | Superman |
| Synopsis | Superman bursts onto scene of "Thing" hatching from egg. |
| Genre | superhero |
| Pencils | Neal Adams |
| Inks | Neal Adams |
| Notes | Cover art credits confirmed from Julius Schwartz's editorial records, provided by DC Comics |
| Characters | alien egg guards (villains); Superman; Clark Kent; Morgan Edge; S. T. A. R. Labs (mentioned); Fortress of Solitude (cameo) |
| Genre | superhero |
| Script | Len Wein |
| Pencils | Curt Swan |
| Inks | Murphy Anderson |
| Reprinted | in Best of DC, The (DC, 1979 series) #56 |
| Characters | aliens (villains); Superman; Lois Lane; Herkimer Ingot |
| Genre | superhero |
| Script | Jerry Siegel |
| Pencils | John Sikela |
| Inks | John Sikela |
| Reprinted | from Superman (DC, 1939 series) #45 March-April 1947 |
| Characters | alien invaders (villains); Dug-Les; Sak-Kar; Ab-Kar; Krypton |
| Genre | Superhero |
| Script | Elliot S! Maggin |
| Pencils | Rich Buckler |
| Inks | Rich Buckler |
| Notes | Credits for script, pencils and inks confirmed from Julius Schwartz's editorial records, provided by DC Comics. |
| Script | E. Nelson Bridwell |
| Letters | typeset |
| Notes | Includes a letter from Bob Rozakis |