It lacks the drama of a shape-shifting alien creature, but another threat looms over the prospect of generations-long, interstellar space travel: Explorers arriving on Xanadu could face problems communicating with previous and subsequent arrivals, their spoken language having changed in isolation along the way.
![](https://scx1.b-cdn.net/csz/news/tmb/2020/58-researchersf.jpg)
Source:
https://phys.org/news/2020-07-linguistic-issues-space.html