The Betz Mystery Sphere: A 1974 Florida Enigma
To the point
Antoine, Jerri, and Terry Betz found an eight-inch stainless-steel sphere on Fort George Island, Florida, in 1974 that seemed ordinary but allegedly vibrated and moved on its own, fueling theories of aliens or secret tech, while researchers like J. Allen Hynek and James Harder found nothing extraordinary and Navy tests concluded it was hollow and probably a ball bearing, leaving its origin unknown.