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- Season 0 1999-07-13
- Season 1 1974-03-03
- Season 2 1974-11-03
- Season 3 1976-01-04
- Season 4 1977-01-05
- Season 5 1978-01-04
- Season 6 1979-01-04
- Season 7 1980-01-15
- Season 8 1981-01-06
- Season 9 1982-01-10
- Season 10 1983-01-18
- Season 11 1984-01-17
- Season 12 1985-01-15
- Season 13 1986-01-21
- Season 14 1987-01-20
- Season 15 1988-01-19
- Season 16 1989-01-17
- Season 17 1990-01-09
- Season 18 1991-01-08
- Season 19 1992-01-14
- Season 20 1993-01-05
- Season 21 1994-01-18
- Season 22 1995-01-08
- Season 23 1995-10-10
- Season 24 1996-10-01
- Season 25 1997-10-07
- Season 26 1998-10-06
- Season 27 1999-10-05
- Season 28 2000-10-24
- Season 29 2001-10-02
- Season 30 2002-09-03
- Season 31 2003-09-30
- Season 32 2004-09-28
- Season 33 2005-09-20
- Season 34 2006-09-05
- Season 35 2007-10-09
- Season 36 2008-10-07
- Season 37 2009-10-06
- Season 38 2010-10-19
- Season 39 2011-09-07
- Season 40 2012-10-10
- Season 41 2013-09-11
- Season 42 2014-09-10
- Season 43 2015-09-16
- Season 44 2016-09-07
- Season 45 2018-01-10
- Season 46 2019-01-02
- Season 47 2020-02-05
- Season 48 2021-01-13
- Season 49 2022-02-01
- Season 50 2023-02-01
- Season 51 2024-01-31
Season 51 Episode
- Season 40 Secrets of the Viking Sword
- Season 40 Forensics on Trial
- Season 40 Mystery of Easter Island
- Season 40 Ultimate Mars Challenge
- Season 40 Inside the Megastorm
- Season 40 Doomsday Volcanoes
- Season 40 Decoding Neanderthals
- Season 40 Rise of the Drones
- Season 40 Who Killed Lindbergh's Baby?
- Season 40 Building Pharaoh's Chariot
- Season 40 Earth From Space
- Season 40 Mind of a Rampage Killer
- Season 40 Meteor Strike
- Season 40 Ancient Computer
- Season 40 Australia's First 4 Billion Years: Awakening
- Season 40 Australia's First 4 Billion Years: Life Explodes
- Season 40 Australia's First 4 Billion Years: Monsters
- Season 40 Australia's First 4 Billion Years: Strange Creatures
- Season 40 Manhunt - Boston Bombers
- Season 40 Oklahoma's Deadliest Tornadoes
NOVA - Season 40 Episode 6 Doomsday Volcanoes
6.80 55 minutes In April, 2010 the eruption of Iceland's Eyjafjallajökull volcano turned much of Europe into an ash-strewn no-fly zone, stranding millions of travelers. But was Eyjafjallajökull just the start? Now, an even more threatening Icelandic volcano, Katla, has begun to swell and grumble. Two more giants, Hekla and Laki, could erupt without warning. Iceland is a ticking time bomb: When it blows, the consequences could be global. As CGI takes us inside these geological monsters, we meet atmospheric scientists who are working to understand just how devastating an eruption could be—not just for air travel but for the global food supply and for Earth's climate.
