A video (above) posted on YouTube the next day shows the small glowing ball moving quickly through the clouds. Onlookers pointed and shouted, excited that what they were looking at was a UFO.
But it wasn't unidentified for long. Another video, also posted on YouTube (below) shows video footage from the flying object's perspective.
That mysterious thing in the sky was a drone with a camera attached, piloted remotely by Sao Paulo news station Folha TV.
Experts in the UFO field -- skeptics and extraterrestrial seekers alike -- agree that sightings are going to skyrocket as drone technology becomes cheaper and more accessible. That isn't necessarily a problem, but many people see any unexplained object in the sky as extraterrestrial, which can lead to fear and general hysteria.
Indeed, in 2011, a crowd of 25,000 protesters in Moscow watched a quad-rotor UFO hover overhead throughout the day. The sight caused mass confusion, OpenMinds TV reported at the time, but it was later revealed to be a local TV station's drone.
Brazilian UFO Caused By Drone; Unmanned Aircraft Causing Rise In UFO Sightings (VIDEO)
Edited by The world needs you, 22 June 2013 - 11:38 AM.