When did NASA's Unexplained Files Season 3 Episode 4 air?
NASA's Unexplained Files Season 3 Episode 4 aired on March 15, 2016.


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.

When a Chinese moon rover breaks down, a NASA scientist points to a mysterious material that seemed to sabotage the Apollo missions, decades earlier. The Rosetta spacecraft finds a comet that appears to be singing.
Direct answers for episode-level questions and details.
NASA's Unexplained Files Season 3 Episode 4 aired on March 15, 2016.
This episode runs for approximately 60 minutes.
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