Comment by throw0101a

> used to be the Vatican astronomical observatory.

The observatory was later moved to Castle Gandolfo:

* https://en.wikipedia.org/wiki/Vatican_Observatory

After the light pollution got too bad, its use was retired, and now things are run out of Arizona:

* https://en.wikipedia.org/wiki/Vatican_Advanced_Technology_Te...

The head dude is Brother Guy, and he has some interesting interviews if you search for him:

* https://en.wikipedia.org/wiki/Guy_Consolmagno