The world appears to be a parallel Earth where it's been ruined by a series of nuclear explosions. But the humans remain completely optimistic that things will turn out alright in the end.
- The name comes from the often quoted "don't worry" and "be happy".
- "Don't Worry, Be Happy" is also the name of a song by Bobby McFerrin.
- Characters from Earth-90313
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- Earth-90313's Appearances
- Earth-90313's Minor Appearances
- Media Earth-90313 was Mentioned in
- Images from Earth-90313
- Reality Gallery: Earth-90313
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