I read not so long ago about the construction of a large telescope in Chile's Atacama Desert, where rainfall can average a millimetre a year and the air is fifty times as dry as the air in Death Valley. Needless to say, skies over the Atacama are pristine. The pilgrim astronomer ventures to the earth's ravaged reaches in order to peer more keenly at other worlds, and I suppose the novelist is up to something similar.
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