Inferior planet

Definition and stakes

Garrett Putman Serviss,  Other Worlds

“ Granted the existence of such a race as is thus described, and to them it might not seem a too appalling enterprise, when their planet had become decrepit, with its atmosphere thinned out and its supply of water depleted, to grapple with the destroying hand of nature and to prolong the career of their world by feats of chemistry and engineering as yet beyond the compass of human knowledge. ”
Source: Gutenberg

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