
How did the Weyland-Yutani corporation know to send the crew of the Nostromo to look for a xenomorph sample in Alien? The simple answer is “The Company” already knew a decent amount about the xenomorphs, which explains why Ash (Ian Holm) and others were so obsessed with the monster in the first film, and even as recently as the midquel Alien: Romulus. While the events of the prequel film Prometheus muddied the waters as to where the famous face huggers and chest bursters originated, everyone can agree that the gas giant Calpamos had a few different moons, and these monsters were found there, even if they didn’t come from those moons.
Now, the new prequel series Alien: Earth will apparently adhere to that exact continuity very closely. After speculation that the Noah Hawley-produced Alien show would change the xenomorph timeline, one line from a new teaser suggests the opposite. The aliens in Alien: Earth will come from the same place they always have. According to a new sizzle reel presented at Disney’s D23 convention in Brazil, the xenomorphs in Alien: Earth will be found on an alien moon.