Lovell was overwhelmed by the smallness of Earth, home to three and a half billion people who, from this vantage point, all wanted the same things—a family to love, food to eat, a roof over their heads, children to kiss. From this distance, he could scarcely comprehend the fragility of Earth’s atmosphere, a layer no thicker than the skin on an apple, the only thing that protected those lives, and life itself.
