Since 1947 the UFO phenomenon has surged with the space age, with about 90% of sightings explained and roughly 10% remaining unexplained, fueling theories of censorship and cover-ups—from Roswell to secret programs like Project Sign, Moo… #aliens #belgium #ebsco #mexico #ovni #uap #ufo #ufosky #usa https://www.ebsco.com/research-starters/visual-arts/ufo-evidence-and-censorship