Villagers in northern Brazil got a scare when a one metre sphere landed just inches from a family home.
The bizarre object weighs around 50kg and nobody has seen anything like it before.
But locals were on the ball - and managed to film the mystery find before it was taken away by police.
Local resident Valdir Jose Mendes, 46, said: "I heard the noise and I went out to see what caused it. I thought it was a plane that had fallen, or an earthquake".
Locals and experts alike are clueless about the origins of the shadowy object.
But it isn't just South America that's caught in a UFO frenzy.
An eagle eyed sky watcher copped an eyeful of a spooky cloud UFO hovering above a Russian
However not everyone is convinced by the video.
One YouTube sceptic said: "I want to believe."
Another added: "It is just a cloud."
Experts have so far failed to explain the origin of the far-out footage.