I think this got posted here the other day and is a study with an interesting premise, which is to look at historical bluebook reports and see if there are correlation to known nuclear tests going on at or around the same time and I believe other astrological events (bright stars or etc - I forget exactly).

But, that could be other possibly freely available data sets you could add to your project, such as if there's known planets in high visibility, geothermal storms, SpaceX launches, satellite falls, maybe flight radar data if that freely exists, and so on.

Anyway very interesting! You might see what the ufo/uap community on reddit thinks about it.

Transients in the Palomar Observatory Sky Survey (POSS-I) may be associated with nuclear testing and reports of unidentified anomalous phenomena https://www.nature.com/articles/s41598-025-21620-3