A North Philadelphia man called Hector Garcia filmed this mysterious footage of what may or may not be a UFO floating ethereally across the sky outside his home. The footage has gone global, with many UFO experts saying it is an example of what is known as a ‘Cloud Stealth UFO’. Cloud Stealth UFOs are believed to be alien ships from outer space that cloak themselves in a force field that, to the naked eye, closely resembles a cloud here on earth.

Nigel Watson, an expert in the field of ‘UFOlogy’ and the author of The UFO Investigations Manual told reporters:

“I’ve seen a lot of UFO videos and they either look too good to be true or are of objects so far away and out-of-focus that you can’t tell what they are. In this case it doesn’t look much at first then the ‘cloud’ descends and looks very odd indeed. It could be clever CGI or a hoax, or it could be a rare form of weather phenomenon. Certainly it looks very ‘alien’ and has got conspiracy fans wondering if it is an ‘invisible’ stealth drone or that it is some form of translucent organic entity that lives in the sky.”

Science has yet to give its verdict on the mystery object that floated past Hector Garcia’s window. Is it a visitor from another world, or is it a plastic bag?

Watch the video and decide for yourselves.