ANONYMOUS ALINES FROM "TIME AND AGAIN" The aliens from "Time and Again" are the most humanoid people Voyager has ever encountered. There is literally no visible difference between these aliens and human beings, besides a truly repulsive taste in clothing. They are interesting only because of their technological level. Most pre-warp aliens in Star Trek are at the level of Ancient Greece or the Aztecs, but these aliens have automatic weapons, railways, electricity, and eco-terrorists. They destroyed itself by the use of polaric energy in an alternate timeline.