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How the Universe Works S5E4 — Secret History of Pluto
8.4
How the Universe Works•Season 5•Episode 4

Secret History of Pluto

8.4/10 · 79 votesJan 3, 201742 min

Ranked #4 of 8 in Season 5•matches the season avg

Discussion

The first close-up images of Pluto revealed unimaginable secrets of this mysterious frozen world. Now, scientists investigate if Pluto is home to a warm ocean of liquid water beneath its surface, and whether this underground ocean could harbor life.

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Episode Summary

"Secret History of Pluto" is episode 4 of How the Universe Works season 5. It scored 8.4/10 from 79 votes, ranking #4 of 8 episodes this season (season average 8.4). It aired on January 3, 2017.

Next: E5 · Stars That KillBest of Season 5