When did NOVA Season 39 Episode 9 air?
NOVA Season 39 Episode 9 aired on January 4, 2012 at 9 PM ET.


PBS' premier science series helps viewers of all ages explore the science behind the headlines. Along the way, NOVA demystifies science and technology, and highlights the people involved in scientific pursuits.

Millions of people around the world live in the shadow of active volcanoes. Under constant threat of massive volcanic eruptions, their homes and their lives are daily at risk from these sleeping giants. From Japan’s Mount Fuji to the "Sleeping Giant" submerged beneath Naples to the Yellowstone "supervolcano" in the United States, we will travel with scientists from around the world who are at work on these sites, attempting to discover how likely these volcanoes are to erupt, when it might happen, and exactly how deadly they could prove to be.
Direct answers for episode-level questions and details.
NOVA Season 39 Episode 9 aired on January 4, 2012 at 9 PM ET.
This episode runs for approximately 55 minutes.
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