https://metro.co.uk/2019/04/18/us-navy-secretly-designed-super-fast-futuristic-aircraft-resembling-ufo-documents-reveal-9246755/
https://en.m.wikipedia.org/wiki/Ning_Li_(physicist)
Did Dr. Ning Li disappear?
https://huntsvillebusinessjournal.com/news/2023/07/30/solving-the-mystery-of-huntsvilles-brilliant-scientist-disappearing/
https://en.m.wikipedia.org/wiki/Ning_Li_(physicist)