Zhor
From superman.nu: Supermanica
A far distant planet with a chlorine atmosphere. In May 1963, on an uninhabited Pacific island, Superman encounters a band of Zhorian space explorers who have been stranded on the island ever since their spacecraft was severely damaged by a hurtling meteor. After learning the details of the aliens’ plight, Superman repairs the damaged space craft and sends the Zhorian explorers safely on their way (S No. 161/2: “Superman Goes to War!â€).