Fair rating?Through the Wormhole· Season 6 · Episode 5
Are There Aliens Inside Us?
Odds are pretty good that extraterrestrial life exists; new research shows we should look closer to home, possibly inside our bodies.
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#4In Season 6of 6 rated episodes
#57All-timeof 62 rated episodes
−0.2vs season avgSeason 6 averages 6.0
2015First airedMay 27, 2015