| IWO | ATLAS |
| Created by Ed Hamilton ? |
PLANETARY INFORMATION
Name: Iwo
Space Sector: Unidentified
Prominent Inhabitants: Sharn
First Appearance: Action Comics #220 (September 1956): "The Interplanetary Olympics"
Creators: Ed Hamilton ?
HISTORY
Iwo is primarily recognized as the homeworld of the athlete Sharn, who challenged Superman during the Interplanetary Olympics hosted on Thon. Sharn had competed to win the prize of the Olympics, a giant power crystal to help his energy-starved world.[1]

- ↑ Action Comics #220 (September 1956)

