http://www.ufoandparanormalnews.com/Government-Stories/ufo-over-denver-described-as-size-of-a-football-field/ Two Denver, CO, witnesses report watching a silent and slow-moving object move overhead with two lights and a "concave or crescent" shaped front end that was the size of a "football field" and seemed to... Sun, 26 Jun 2011 19:00:57 UTC en