A pioneering marine biologist takes us down into the deep ocean to understand bioluminescence—the language of light that helps life communicate in the darkness—and what it tells us about the future of life on Earth. “Edie’s story is one of hardscrabble optimism, two-fisted exploration and groundbreaking research. She’s done things I dream of doing.”—James CameronEdith Widder’s childhood dream of becoming a marine biologist was almost derailed in college, when complications fr