NASA's Unexplained Files Season 4 Episode 4 The Earth Next Door 2016
7.1/10 by 27 users
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.
- Released: 2016-09-20
- Runtime: 60 minutes
- Genre: Documentary, Talk, Mystery
- Stars:
- Director:
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1. Pluto's Stranger Things 2016-08-30
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2. Rise of the Planet Killer 2016-09-06
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3. A President's Close Encounter 2016-09-13
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4. The Earth Next Door 2016-09-20
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5. Curse of the Full Moon 2016-09-27
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6. Did Earth Have Two Moons? 2016-10-04
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7. Mystery of the Invisible Planet 2016-10-11
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8. Mars's Deepest Secret 2016-10-18
