Season
- 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 52 2025-01-22
Season 52 Episode
- Season 50 London Super Tunnel
- Season 50 Star Chasers of Senegal
- Season 50 Ancient Builders of the Amazon
- Season 50 New Eye on the Universe
- Season 50 Weathering the Future
- Season 50 Chasing Carbon Zero
- Season 50 Saving the Right Whale
- Season 50 Hidden Volcano Abyss
- Season 50 Your Brain: Perception Deception (1)
- Season 50 Your Brain: Who's in Control? (2)
- Season 50 Ancient Earth: Birth of the Sky
- Season 50 Ancient Earth: Frozen
- Season 50 Ancient Earth: Life Rising
- Season 50 Ancient Earth: Inferno
- Season 50 Ancient Earth: Humans
- Season 50 Inside China's Tech Boom
- Season 50 The Battle to Beat Malaria
- Season 50 Lee and Liza's Family Tree
NOVA - Season 50 Episode 14 Ancient Earth: Inferno
6.90 55 minutes 252 million years ago, the most devastating mass extinction of all time abruptly wiped out around 90% of all species on Earth. The culprits were the biggest volcanic eruptions the world has ever seen, emitting some 700 thousand cubic miles of magma and rock. Volcanic gasses permeated the atmosphere and acidified the oceans while toxic gasses destroyed the ozone layer, bathing the planet in destructive UV radiation. The event—now called "The Great Dying"—came close to wiping out all life on the planet. Follow scientists as they piece together geologic evidence from the deep past and clues from today’s ecosystems to discover how life made it through and evolved into the astonishing variety we see around us today.
