| Issue | #178 |
| Published | September 1968 |
| Cover Price | 0.12 |
| Pages | 36 |
| Editing | Mort Weisinger; E. Nelson Bridwell (Asst) |
| Characters | Green Arrow; Batman; Superman |
| Genre | superhero |
| Pencils | Neal Adams |
| Inks | Neal Adams |
| Characters | Nova (intro); Green Arrow; Speedy; Batman; Superman; Robin; Aunt Harriet; Mr.Socrates |
| Synopsis | A trip to another dimension robs Superman of his powers, so Clark adopts a new identity as Nova. |
| Genre | superhero |
| Script | Cary Bates |
| Pencils | Curt Swan |
| Inks | Jack Abel |
| Notes | continued in 180; imaginary story. Despite the fact that Superman claims Nova's cape is gold, it's actually green. |
| Reprinted | in DC Special Series (DC, 1977 series) #23 (February 1981) |
| Characters | Superman; Lois Lane |
| Genre | superhero |
| Script | Bill Finger |
| Pencils | Wayne Boring |
| Inks | Stan Kaye |
| Notes | Editors' Round Table |
| Reprinted | from Superman (DC, 1939 series) #107 (August 1956) |