On January 14, 1972 ANSA astronauts Taylor, Dodge, Landon and Stewart were launched from Cape Kennedy. During the course of their flight, the craft passed through a Hasslein Curve, a time warp, propelling them through time. Soon after, in November 1972, ANSA astronauts Brent and Maddox were launched along the same flight path as the previous vessel to probe its unexplained disappearance. Like Taylor's craft before them, they slipped through a Hasslein Curve, and traveled through time, losing contact with home. In 2503, New York City was a technologically advanced city.