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"Inventive and thrilling. . . . I couldn't put it down." - Brit Bennett, #1 New York Times bestselling author of The Vanishing Half"It's a thrill to read this novel." - Jia Tolentino, New York Times bestselling author of Trick MirrorThe gripping story of one scientist in outer space, another who watches over him, the family left behind, and the lengths people will go to protect the people and planet they loveFor twenty years, Alex has believed that his gene-edited super-algae will slow and even reverse the effects of climate change. His obsession with his research has jeopardized his marriage, his relationships with his kids, and his own professional future. When the Son sisters, founders of the colossal tech company Sensus, offer him a chance to complete his research, he seizes the opportunity.