NOVA.

NOVA

Ancient Earth: Inferno

Scientists piece together geologic evidence from the past and clues from the Earth's ecosystems to determine how life made it through a cataclysmic extinction that wiped out about 90 percent of all species 252 million years ago. (61 minutes)

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UPCOMING EPISODES

Sun, 12/22 at 2:59 am on Austin PBS HDTV

Lost Tombs of Notre Dame

Scientists and historians study remains found in caskets under Notre-Dame de Paris' stone floor following the 2019 fire. (61 minutes)

Sun, 12/22 at 4:55 pm on Austin PBS HDTV

Lost Tombs of Notre Dame

Scientists and historians study remains found in caskets under Notre-Dame de Paris' stone floor following the 2019 fire. (65 minutes)

Tue, 12/24 at 6:00 pm on Austin PBS WORLD

Lost Tombs of Notre Dame

Scientists and historians study remains found in caskets under Notre-Dame de Paris' stone floor following the 2019 fire. (60 minutes)

Tue, 12/24 at 11:00 pm on Austin PBS WORLD

Lost Tombs of Notre Dame

Scientists and historians study remains found in caskets under Notre-Dame de Paris' stone floor following the 2019 fire. (60 minutes)

Wed, 12/25 at 7:00 am on Austin PBS WORLD

Lost Tombs of Notre Dame

Scientists and historians study remains found in caskets under Notre-Dame de Paris' stone floor following the 2019 fire. (60 minutes)