In the dark mirror universe, Zefram Cochrane was a male Terran scientist who lived during the 21st century. He was the designer of the Phoenix, the first Terran vessel to travel at warp speed. The historic flight of the Phoenix took place on April 5, 2063. On that day, the Vulcan survey ship T'Plana-Hath was passing through the Sol System when it discovered a Terran warp signature. Following procedure, its captain Solkar had the T'Plana-Hath proceed to Earth to investigate the warp signature, and landed at the settlement in Bozeman, Montana from where the Phoenix had been launched. Solkar was the first to exit the T'Plana-Hath and meet Cochrane.