Parcast Presents: Summer of '69

In 1952, the Air Force created a third project, pursuing objective UFO data without a bias. After examining thousands of cases, and dismissing many as planes, birds, or clouds, Project Blue Book was left with several UFO sightings that no one could explain. For more episodes like this one, follow Unexplained Mysteries. Every Tuesday and Thursday, unravel the stories behind history’s most compelling puzzles.  Learn more about your ad choices. Visit podcastchoices.com/adchoices