Season 5 · Episode 4 of 8
Aired Jan 13, 2018
Secret Aliens
Sat, Jan 13, 2018
·
44 min
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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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Airs
Sat, Jan 13, 2018
44 min
Show
NASA's Unexplained Files
47 episodes
Episode
S5 · E4
in NASA's Unexplained Files