Ninety-five percent of reported U.F.O. sightings investigated by Project Blue Book were attributed to conventional causes such as uncommon clouds, weather balloons, atmospheric temperature inversions, Venus, or classified military technology like the U-2 spy plane and the SR-71 Blackbird.

Authors

• Person: Not available Organization: The New Yorker
  How the Pentagon Started Taking U.F.O.s Seriously | The New Yorker

Sources

• How the Pentagon Started Taking U.F.O.s Seriously | The New Yorker www.newyorker.com The New Yorker via serper

Referenced by nodes (4)

• UFO sightings concept
• Project Blue Book concept
• U-2 reconnaissance aircraft concept
• Venus location