Robert A. Heinleinstandalone novel1961
First contact, about faith and religion, set in north america and near future.
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Arthur C. Clarkestandalone novel1953
First contact, bittersweet in tone, about technological singularity, set in near future.
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Theodore Sturgeonstandalone novel1950
Emotional in tone, about genetic engineering and identity.
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Carl Saganstandalone novel1985
First contact and hard science fiction, about space exploration and faith and religion.
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