The Doppler goes to Alpha Centauri

50 astronauts were selected in 2027 from a candidate list of 5,000 as the ones who will terraform Alpha Centauri’s Proxima Centauri b, and whereas it was thought to be in a few centuries from now, new biochemistry on earth-humans has produced sturdy super women and men and 25 of each sex made the cut. They are all in their early 30s, athletic, IQ of 140+ and willing to leave earth.