The 27th century: Proxima Centauri, an undistinguished red dwarf star, is the nearest star to the sun and the nearest to host a world, Proxima IV, habitable by humans. But Proxima IV is unlike Earth in many ways. Huddling close to the warmth, orbiting in weeks, it keeps one face to its parent star at all times. One half desert, the other half an ice cap in perpetual darkness. How would it be to live on such a world? Yuri Jones, with 1,000 others, is about to find out.