Meet the Classified Spy and Stealth Planes at Area 51 That Everyone Thought Were UFOs
https://nationalinterest.org/blog/buzz/meet-classified-spy-and-stealth-planes-area-51-everyone-thought-were-ufos-133807

The Real Story Behind Area 51's 'UFOs': Top Secret Experimental Spy Planes
https://nationalinterest.org/blog/buzz/real-story-behind-area-51s-ufos-top-secret-experimental-spy-planes-123541

Area 51's Most Outrageous Top Secret Spy Plane Projects
https://www.history.com/news/area-51-top-secret-spy-planes-u2-blackbird

China's helicopter prototype looks like a UFO
https://www.cnn.com/2019/10/16/asia/china-new-helicopter-ufo-intl-scli-hnk/index.html

Avro Canada VZ-9AV Avrocar
https://www.nationalmuseum.af.mil/Visit/Museum-Exhibits/Fact-Sheets/Display/Article/195801/avro-canada-vz-9av-avrocar/


The AI we Encounter Everyday is Really Just Aliens
https://u.osu.edu/vanzandt/2019/02/26/the-ai-we-encounter-everyday-is-really-just-aliens/

How Area 51 Works
https://science.howstuffworks.com/space/aliens-ufos/area-51.htm#pt4

U.S. Navy Laser Creates Plasma ‘UFOs’
https://www.forbes.com/sites/davidhambling/2020/05/11/us-navy-laser-creates-plasma-ufos/#483427831074

Harvard’s top astronomer says an alien ship may be among us — and he doesn’t care what his colleagues think
https://www.washingtonpost.com/lifestyle/style/harvards-top-astronomer-says-an-alien-ship-may-be-among-us--and-he-doesnt-care-what-his-colleagues-think/2019/02/04/a5d70bb0-24d5-11e9-90cd-dedb0c92dc17_story.html