The aliens came on Oct. 19, 2017.
![](https://scx1.b-cdn.net/csz/news/tmb/2020/mysteriousin.jpg)
Source:
https://phys.org/news/2020-06-mysterious-interstellar-visitor-dark-hydrogen.html
Only the Autodidact is Free
The aliens came on Oct. 19, 2017.
Source:
https://phys.org/news/2020-06-mysterious-interstellar-visitor-dark-hydrogen.html