During World War II, Japan launched thousands of hydrogen balloons carrying bombs, and hundreds ended up in the U.S. and Canada. Most were ineffective, but one was lethal. In May 1945, six civilians died when they found one of the balloons on the ground in Oregon, and it exploded.
In the aftermath of the war, America’s own balloon effort ignited the alien stories and lore linked to Roswell, New Mexico.
According to military research documents and studies, the U.S. began using giant trains of balloons and sensors that were strung together and stretched more than 600 feet as part of an early effort to detect Soviet missile launches during the post-World War II era. They called it Project Mogul.
One of the balloon trains crash-landed at the Roswell Army Airfield in 1947, and Air Force personnel who were not aware of the program found debris. The unusual experimental equipment made it difficult to identify, leaving the airmen with unanswered questions that over time — aided by UFO enthusiasts — took on a life of their own. The simple answer, according to the military reports, was just over the Sacramento Mountains at the Project Mogul launch site in Alamogordo.
In 2015, an unmanned
Army surveillance blimp broke loose from its mooring at Aberdeen Proving Ground in Maryland and floated over Pennsylvania for hours with two fighter jets on its tail, triggering blackouts as it dragged its tether across power lines. As residents gawked, the 240-foot blimp came down in pieces in the Muncy, Pennsylvania, countryside. It still had helium in its nose when it fell, and state police used shotguns — about 100 shots — to deflate it.