NASA's Unexplained Files - Season 2 - Eps 1: Life in Hell
A UFO crashes in Pennsylvania. Was it a secret Soviet satellite or something far more dangerous? On Mercury, NASA finds the impossible: frozen water. A strange object causes a skyscraper-sized shadow on the surface of Mars's largest moon. What is it?
About NASA's Unexplained Files

Title: NASA's Unexplained Files
First Air Date: 2012-03-27
Last Air Date: 2019-05-23
Status: Returning Series
Rating: 7/10 (from 30 votes)
Language: EN
Seasons: 6
Total Episodes: 47
Network: Science
Genres: Documentary, Talk, Mystery
Production Companies: Discovery, Wag TV
Synopsis
Dive into the mysteries of some of NASA’s most curious missions and explore stories of engineering achievement and human endurance. Each episode offers first hand testimony from astronauts, NASA mission footage, plus beautifully rendered CGI to bring to life these voyages that reveal unexplained sightings that have dogged many of NASA’s most famous missions.