Star Trek is a science fiction universe in which Terrans have attained interstellar travel and Earth is part of the United Federation of Planets. The stories focus on the crews of particular space faring vessels whose mission are to seek out new life and new civilizations. There have been 5 TV series, many movies, an animated series, and a plethora of novels, comics, and manga placed in this universe. For more information on Star Trek check out startrek.com, memory alpha, or wikipedia. In the Suburban Senshi universe, there is some Star Trek tied into Sakura Xadium Aino's tale. Emmy K is also a fan of Star Trek, especially of Lt. Comm. Data. There is more detail to how it does into our canon on the canon explanation page.