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NASA’s Unexplained Files: 4x6
Did Earth Have Two Moons?
A discovery suggests the hellish clouds of Venus may be the origin of life on Earth. A bizarre sighting 2,000 years ago raises the possibility that Earth once had two moons. A scientist helps the FBI crack the 1996 Olympic bombing.
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