UFOs: Investigating the Unknown - Season 1 Episode 2 2. Bölüm
Astronomer J. Allen Hynek leads Project Blue Book's scientific efforts to catalog and investigate civilian reports of UFOs.
- Tür: Documentary
- Stüdyo: National Geographic
- Anahtar kelime: u.s. air force, ufo, government cover-up, ufo sighting, military pilots, u.s. military intelligence
- Oyuncular: Leslie Kean, Chris Mellon