When did NASA's Unexplained Files Season 1 Episode 4 air?
NASA's Unexplained Files Season 1 Episode 4 aired on March 11, 2014.


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.

A chunk of the sun appears to have vanished. An ominous dark craft beneath the Space Shuttle Endeavour. Hubble spots thousands of unidentified objects traveling faster than light. Are we being watched?
Direct answers for episode-level questions and details.
NASA's Unexplained Files Season 1 Episode 4 aired on March 11, 2014.
This episode runs for approximately 44 minutes.
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