A respected geologist, Zoe Barnes is a secretive and delicate beauty, known for her clear-eyed enthusiasm for space travel as much as for her abject refusal to date her co-workers. Zoe carries a quiet torch for Donner, with whom she shared a one-night tryst that resulted in a brief, secret pregnancy during training. It’s the secret that will keep them apart – for now. Zoe is impulsive and boasts an unexpected, edgy sense of humor. She also cherishes her bond with fellow scientist Jen Crane, a much-needed confidante as Zoe’s unknown future clashes with ghosts from her past. Only one thing is certain for Zoe: as the safety of Earth grows farther each day, she’ll need all the help she can get…