Season 5 · Episode 4
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Secret Aliens
Sat, Jan 13, 2018
·
44 min
An astronomer records an unusual signal from a distant star. FBI agents find classified documents at the home of a NASA scientist. When scientists discover strange DNA in the octopus, they examine if their origins could be alien.
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Sat, Jan 13, 2018
44 min
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NASA's Unexplained Files
47 episodes
Episode
S5 · E4
in NASA's Unexplained Files
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S5 · E5
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