Navigate the archive by time, geography, and significance.

• ◆ Timeline 224 events
• ◆ Sightings Map Interactive
• ◆ US States 52 states
• ◆ Countries 370+ countries
• ◆ Credible Sightings

Primary source collections: newsletters, books, films, newspapers, and raw data.

• ◆ Newsletter Archive 246 collections
• ◆ Books
• ◆ Documentaries
• ◆ Newspaper Clippings
• ◆ Acronyms & Terms
• ◆ Open Data

Case files, government reading rooms, microfilm viewers, exhibitions, and congressional hearing records.

• ◆ Case Files 1,030 cases
• ◆ Government Reading Rooms 7 countries
• ◆ Blue Book Microfilm
• ◆ Case Exhibitions
• ◆ Congressional Hearings 1952 to 2025

Recent coverage, analysis, and disclosure developments.

• ◆ All Articles 84 published

Searchable directories of people, cases, and organisations across the archive.

• ◆ Encyclopedia 4,608 entries
• ◆ People Directory 4,503 people

Background, methodology, ethics, and the people who built this archive.

• ◆ About the Archive
• ◆ In Dedication
• ◆ Mindset & Approach
• ◆ How to Use This Site