Talents, Incorporated by Murray Leinster — Read

Nobody had ever found any use for the Glamis solar system. There was a sun of highly irregular variability. There were two planets, of which the one farther out might have been useful for colonization except that it was subject to extreme changes of climate as its undependable sun burned brightly or dimly. The nearer planet was so close to its primary that it had long ceased to rotate. One hemisphere, forever in sunshine, remained in a low, red heat. Its night hemisphere, in perpetual darkness, had radiated away its heat until there were mountains of frozen atmosphere piled above what should have been a mineral surface. It was a matter of record that a hundred standard years before, a ship had landed there and mined oxygen-containing snow, which its air apparatus was able to refine so the crew could breathe while they finished some rather improbable repairs and could go on to more hospitable worlds.

The farther-out planet was sometimes a place of green vegetation and sprawling seas, and sometimes of humid jungles with most of its oceans turned to a cloud-bank of impenetrable thickness. Also, sometimes, it was frozen waste from pole to pole. The vegetation of that planet had been studied with interest, but the world itself was simply of no use to anybody. Even the sun of the Glamis system was regarded with suspicion.