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FINALE · SCIENCE
Season 4 · Episode 8
Landed Tue, 18 Oct 2016 · 21:00 your time · 1 episode · 1h 0m
The Season 4 finale of NASA's Unexplained Files (Episode 8) aired Tuesday, 18 October 2016 at 9pm ET on Science.
- S04E08Mars's Deepest SecretBritish astronomers working for the CIA intercept Soviet photos of the moon. A malfunction on the ISS could poison its crew with deadly ammonia gas. A startling image taken by a NASA probe points to evidence that life could exist on Mars.
NASA's Unexplained Files
6 seasons · 46 episodes · ended
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