Date of sighting: July 27, 2011Location of sighting: Vancouver, British Columbia, CanadaEyewitness states: "Wednesday's night sky over Vancouver, BC played host to a pulsating UFO that was captured on video during skywatching activities from Burnaby Mountain Park on July 27, 2011. The UFO was detected by a night vision camera and tracked for nearly five minutes as it travelled SE to NW before disappearing behind a stand of trees. During this period, the UFO was first seen being overtaken by a second, faster-moving object before amplifying its luminous output in what veteran skywatchers describe as a "power-up" incident. While in flight, the UFO performed multiple power-ups, inviting comparison with another object recorded four nights earlier near Vancouver City Hall."Source: http://www.examiner.com/ufo-in-vancouver/jon-kelly Scott C. Waring wrote "UFO Sightings of 2006-2009" and "Dragons of Asgard."