* https://www.npr.org/2016/02/22/467210492/u-s-navy-brings-bac...
* https://www.cbc.ca/news/canada/british-columbia/canadian-nav...
* https://en.wikipedia.org/wiki/Celestial_navigation
Note that there are 'machines' (Nortronics NAS-14V2) that can look at the sky and return lat/long:
* https://timeandnavigation.si.edu/multimedia-asset/nortronics...
* https://maritime-executive.com/blog/automated-celestial-navi...
> The new systems use infrared rather than visible light for locating stars, allowing daytime navigation. The stars shine just as brightly in the day sky as they do at night, but their light is masked by sunlight scattered by the atmosphere. The scattering is strongest at short wavelengths... But glimpse that same sky with a filter that allows only infrared light, and the sky suddenly becomes dark - and filled with stars.
[0] https://www.popularmechanics.com/military/research/a36078957...
> Intercontinental ballistic missiles use celestial navigation to check and correct their course (initially set using internal gyroscopes) while flying outside the Earth's atmosphere. The immunity to jamming signals is the main driver behind this seemingly archaic technique.