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.
VIDEO: TR-3B flying over Las Vegas, Nevada? April 2013
This interesting video of some kind of triangle-shaped craft slowly flying over Las Vegas, NV. This was recorded in early April 2013.