Date of sighting: September 2, 2013
Location of sighting: Derby, England
UFO have cloaks...even DARPA has made some primitive cloaks capable of hiding tanks and buildings from a distance, so its just science. If a UFO is in the wide open area, it will try to cloak in a self made cloud if unable or unwilling to turn invisible. SCW
What I thought was a comet!! turns out to be even stranger!.....I think this is some type of vortex tube, created by a zero point energy craft........