Access to this video is a benefit for members through
Up Next
Back to Show
NOVA
Killer Floods
Season 44
Episode 18
All over the world, scientists are discovering traces of ancient floods on a scale that dwarfs even the most severe flood disasters of recent times. What triggered these cataclysmic floods, and could they strike again? In the Channeled Scablands of Washington State, the level prairie gives way to bizarre, gargantuan rock formations.
Support Provided By
Season
Unlock with PBS Passport
53:46
How did life survive on a planet covered in ice from pole to pole?
Unlock with PBS Passport
53:47
See how Earth transformed from a barren hellscape to a planet capable of sustaining life.
53:31
Dive into the subconscious to see what’s really driving the decisions you make.
53:30
Neuroscientists discover the tricks and shortcuts the brain takes to help us survive.
53:19
Investigate one of the most powerful volcanic eruptions in recorded history.
53:31
Follow scientists determined to save the critically endangered right whale.
53:31
Here’s how the U.S. could reach net-zero carbon emissions by 2050.
53:31
Americans use ancient wisdom and new technology to fight extreme weather.
53:31
See the latest stunning images and discoveries from the James Webb Space Telescope.
53:22
Archaeological discoveries reveal traces of ancient civilizations in the Amazon.
Unlock with PBS Passport
53:20
A visionary scientist investigates the deep history of astronomy in West Africa.
53:20
Thousands race to build Europe's biggest construction project–London's new railroad.