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NASA's Unexplained Files S5E4 — Secret Aliens
7.5
NASA's Unexplained Files•Season 5•Episode 4

Secret Aliens

7.5/10 · 17 votesJan 13, 201860 min

Ranked #4 of 8 in Season 5•matches the season avg

Discussion

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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Episode Summary

"Secret Aliens" is episode 4 of NASA's Unexplained Files season 5. It scored 7.5/10 from 17 votes, ranking #4 of 8 episodes this season (season average 7.5). It aired on January 13, 2018.

Next: E5 · Stonehenge on MarsBest of Season 5