Limited institutional or scientific study of UFOs led to the formation of independent researchers and organizations such as APRO, NICAP, CUFOS, and MUFON starting from the mid-20th century.

Authors

• Person: Not available Organization: Wikipedia
  Unidentified flying object - Wikipedia

Sources

• Unidentified flying object - Wikipedia en.wikipedia.org Wikipedia via serper

Referenced by nodes (3)

• National Investigations Committee On Aerial Phenomena entity
• Mutual UFO Network entity
• Center for UFO Studies entity