| EARTH-15 | ATLAS |
| Created by Paul Dini, Justin Gray, Jimmy Palmiotti, Keith Giffen and Jesus Saiz |
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PLANETARY INFORMATION
Name: Earth-15
Dimension: 52 Multiverse
Galaxy: Milky Way
Sun(s): Sol (yellow)
Dominant Lifeform: Humans
Prominent Inhabitants: Atom, Batman, Green Lantern, Superman, Wonder Woman
First Appearance: Countdown #30 (December 2007 [October 3, 2007]): "Familiy Feud"
Creators: Paul Dini, Justin Gray, Jimmy Palmiotti, Keith Giffen and Jesus Saiz
HISTORY
- Earth-15 featured a Justice League of America whose heroes were the successors of those usually attached to the names, Other differences were Superman was Zod, not Kal-El and was expecting a child (possibly with his world's Lana Lang) as well as a Lex Luthor that was not a villain. This universe was visited by the Challengers from Beyond as they crossed the multiverse seeking their reality's Atom.
Superman-Prime arrived on Earth-15 seeking a home but claimed he could accept the difference in heroes, except for Earth-15's Superman and Lex Luthor. While brutally murdering the Justice League, he was told by Earth-15's Batman the world would never accept him as a hero. Already mentally unhinged, Superman-Prime destroyed Earth-15 by tunnelling through its core and causing the planet to explode. - Countdown #24.