How the Universe Works - Season 4 (2015) (season)
USA,
2015, 44 min
VOD (2)
Plots(1)
Our Moon is stranger than you think, and we reveal its incredible secrets. Can we thank the Moon for life on Earth? What explains the mysterious tunnels beneath its surface? Is a lunar base the key to humanity's future in space? (iTunes)
Cast
![Mike Rowe](http://image.pmgstatic.com/cache/resized/w88h116crop/files/images/creator/photos/000/276/276554_168e0f.jpg)
Mike Rowe (narrator)
USA
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Dirty Jobs: Down Under (2012) (series)
American Dad! (2005) (series)
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Phil Plait
USA
Michelle Thaller
USA
![Christopher McKay](http://image.pmgstatic.com/cache/resized/w88h116crop/files/images/creator/photos/160/692/160692008_541ca4.jpg)
![Lawrence M. Krauss](http://image.pmgstatic.com/cache/resized/w88h116crop/files/images/creator/photos/158/413/158413487_b41721.png)