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Season 1 Episode 23 | 6m 36s
| Video has closed captioning.
When we say a planet is habitable, we aren’t REALLY saying what we think we are saying. 'Habitable' means something else. Is Kepler 186f habitable, in the true sense of the word? And if not, what other planets should we be looking at? Watch this episode of PBS SpaceTime and find out!
