NASA : unexplained files

Mysterious flying objects, unexplained disappearances, species invasions: a swirl of suspicion has circled our planet for decades, but few definitive answers have been offered. This collection combs through three and a half hours of evidence, interviews, and theories that attempt to explain the unex...

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Bibliographic Details
Main Author: Discovery Channel
Format: DVD
Language:ENGLISH
Published: distributed by Discovery Channel 2014
Subjects:
DVD