About This Book
An aging couple and spaceflight officials confront a future in which solar and ship-borne radiation cripple human fertility and progressively erode sanity, producing a persistent hallucination that drives exposed travelers toward the Sun. Engineers and psychologists debate competing remedies — heavier shielding, faster drives, or selecting biologically tougher crews — while demographic and ethical consequences of a heredity block limit interplanetary movement. Against technical analyses, the couple's personal longing to hold family members highlights the human cost of limits on space travel, and the narrative examines how biological constraints shape technological choices and social arrangements for off-world voyaging.
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