This footage of a triangular UFO seen over Amsterdam on October 28, 2013, was uploaded on the internet few days ago.

A white triangle floats effortlessly over the clouds, turning at a snail's pace and nearly remaining stationary. At first look, this may appear to be a paper or plastic bag that has been thrown into the sky.

But, at the final end of this thing, it becomes readily apparent that it is neither trash nor a kite or a drone. In a fraction of a second, the item appears to explode with a bright yellow flare and vanishes with incredible velocity while jerking to the left.

VIEW — During a rainstorm, police in an Australian city reveal photographs of a UFO.

According to the video's creator, this may not be an extraterrestrial craft, but rather the highly classified US triangle plane TR3B, which is claimed to be based on the technology of a crashed UFO at Roswell. Yet, it is implausible that someone would launch TR3B in broad daylight across a metropolitan area as large as Amsterdam.