Throughout Alien: Romulus' story, it is revealed what exactly the Renaissance ship was used for by Weyland-Yutani.As alluded ...

Sigourney Weaver has put a lot of time in space and says she is done playing Ellen Ripley in the Alien franchise. ... but, you know, that ship has sailed,” she told Total Film.

At the beginning of the production, 'Alien' had a different title and the ship was not called Nostromo either, but everything changed in the later scripts.