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NASA’s Unexplained Files: 4x4
The Earth Next Door
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.
4 - 1Pluto's Stranger Things Aug. 30, 2016- 4 - 2Rise of the Planet Killer Sep. 06, 2016
- 4 - 3A President's Close Encounter Sep. 13, 2016
- 4 - 4The Earth Next Door Sep. 20, 2016
- 4 - 5Curse of the Full Moon Sep. 27, 2016
- 4 - 6Did Earth Have Two Moons? Oct. 04, 2016
