There have been many reported UFO sightings in the United States over the years. Some people believe that these sightings are evidence of aliens visiting Earth, while others believe they could be explainable phenomena such as weather balloons or military aircraft. There is no definitive evidence to prove the existence of aliens, so the question of whether or not they have visited Earth remains a topic of debate and speculation.
Unknown lights filmed over Tucson, Arizona 11-Dec-2011
UFO sightings – These bright unidentified flying object were seen and recorded above Mt. Lemmon in Tucson, Arizona on Sunday, 11th December 2011.
