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EPISODE · SCIENCE
Season 4 · Episode 4
Landed Tue, 20 Sept 2016 · 22:00 your time · 1 episode · 1h 0m
Season 4, Episode 4 of NASA's Unexplained Files aired Tuesday, 20 September 2016 at 10pm ET on Science.
- S04E04The Earth Next DoorAstronomers detect a potentially habitable planet tantalizingly close to Earth. A chance discovery at NASA reveals a top secret military space program. The Apollo missions bring back evidence that the moon could be rich in the building blocks for life.
NEXT IN SEASON 4
Episode 5
Tue 27 Sept · 21:00
NASA's Unexplained Files
6 seasons · 46 episodes · ended
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Airs on Science; availability in United States may differ.
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