Sagan often braided rapture with responsibility: the more we grasp the cosmos, the more we owe one another. His fiction and essays insist that love makes immensity bearable (Contact, 1985), while Pale Blue Dot (1994) converts our fragile vantage point into a pledge—to treat each other kindly and guard the only home we share. Thus, the arc of inquiry bends toward care: discovery awakens empathy, empathy guides design, and design returns benefits to the world that inspired our questions. In the end, science becomes kindness, and knowledge becomes complete. [...]
