Dawn on a new world brings risks. And choices.Wisdom stared at the mountains that cut across the horizon like cobalt paper cutouts, watching them shift pink as dawn crept up. How odd to have a horizon, to have six habitable planets, after generations traveling between the stars.Their four-woman team was one of dozens exploring their new worlds to see which would make a proper home. Four missions, four dawns, four worlds and four choices for them to...