Season 4 · Episode 4 of 8
Aired Sep 20, 2016
The Earth Next Door
Tue, Sep 20, 2016
·
42 min
0 of 8 watched this season
Astronomers detect a potentially habitable planet tantalizingly close to Earth. A chance discovery at NASA reveals a top secret military space program. The Apollo missions bring back evidence that the moon may be rich in the building blocks for life.
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Airs
Tue, Sep 20, 2016
42 min
Show
NASA's Unexplained Files
47 episodes
Episode
S4 · E4
in NASA's Unexplained Files