Planet X (Star Trek) Planet X (Star Trek) Planet X () is a 1998 "Star Trek" novel by Michael Jan Friedman which is a crossover between the X-Men comic book series and the characters of "". A "New York Times" bestseller, it was a sequel to an earlier crossover, detailed in the Marvel Comics one-shot "Second Contact" (which was itself similar to an earlier "Star Trek/X-Men" crossover comic, where a slightly different team of X-Men encountered the characters of ). The novel is noteworthy for hinting at an attraction between Jean-Luc Picard and Ororo Munroe (Storm), and made a forward-looking reference to the (then
X-Men presented in the comics serve as allegory to modern issues in the real world, such as Lydia Nance suggesting mass mutant deportation. The X-Men exist in the Marvel Universe along with other characters featured in Marvel Comics series. They often meet characters from other series, and the global nature of the mutant concept means the scale of stories can be highly varied. The X-Men's enemies range from mutant thieves to galactic threats. Historically, the X-Men have been based in the Xavier Institute, in the town of Salem, located in Westchester County, New York, and are often portrayed as a family.