Maps were created with shape files from https:// www.naturalearthdata.com/. Labels are the official abbreviations of Brazilian states: AC: Acré, AL: Alagoas, AP: Amapá, AM: Amazonas, BA: Bahia, CE: Ceará, DF (arrow): Distrito Federal, ES: Espírito Santo, GO: Goiás, MA: ...
Throughout the month of July 1952, a series of sightings known as the “Big Flap” put Washington D.C. residents into a panic. It began July 19: Repeated radar blips and sightings of lights moving at irregular speeds and trajectories (unusual enough to rule out shooting stars or aircraft)...