Season 3 Episodes8
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Ranked #1 of 8 in Season 3•+0.6 vs season avg
This episode is about the possibilities of finding life in our solar system. It has in depth views and information about Mars, Europa, Enceladus, and Titan.
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"Expedition Extraterrestrial" is episode 7 of Space's Deepest Secrets season 3. It scored 8.8/10 from 10 votes, ranking #1 of 8 episodes this season (season average 8.2). It aired on October 3, 2017.