Season 6 Episodes11
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Ranked #6 of 9 in Season 6•−0.1 vs season avg
The latest NASA missions to Mars might finally reveal if it is home to alien life, and using these brand-new discoveries, experts are rethinking everything they know about the Red Planet.
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"Mars' Alien Secrets" is episode 11 of Space's Deepest Secrets season 6. It scored 8.3/10 from 7 votes, ranking #6 of 9 episodes this season (season average 8.4). It aired on May 28, 2019.