What did the East Coast Look Like 3 Million Years Ago?

To illustrate how the coastline might look if Earth's climate continues to warm, paleontologist Kirk Johnson and geologist Maureen Raymo search for 3-million-year-old clams in a Virginia quarry miles offshore.

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Clip Season 47 Episode 1 Length 03:21 Premiere: 02/05/20

Recent Episodes

Return to the Moon

S53 E7 Length 53:08 Premiere Date 04/29/26

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S53 E5 Length 53:24 Premiere Date 04/22/26

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S53 E8 Length 53:40 Premiere Date 04/15/26

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S53 E6 Length 53:25 Premiere Date 02/25/26

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Clips & Previews

Polar Extremes Preview

Preview Length 03:19 Premiere Date 02/05/20

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Clip Length 02:12 Premiere Date 02/05/20

Plant Fossils Hint at Arctic's Swampy Past

Clip Length 03:02 Premiere Date 02/05/20

What did the East Coast Look Like 3 Million Years Ago?

Clip Length 03:21 Premiere Date 02/05/20

How Carbon Dioxide Warms Planet Earth

Clip Length 02:32 Premiere Date 02/05/20

A Bird's-Eye View of Carbon Emissions

Clip Length 01:56 Premiere Date 02/05/20

This Alaska Community is Losing Sea Ice to Climate Change

Clip Length 04:47 Premiere Date 02/05/20

Fifty Million Years Ago, the Arctic Was a Warm Swamp

Clip Length 02:07 Premiere Date 02/05/20

What’s Causing Greenland’s Biggest Glacier to Melt?

Clip Length 02:04 Premiere Date 02/05/20

How Earth’s Climate Changed Over the Past 500 Million Years

Clip Length 03:25 Premiere Date 02/05/20

This Canadian Cave Has Been Frozen Since the Last Ice Age

Clip Length 03:11 Premiere Date 02/05/20

How Climate Has Shifted Over Millions of Years

Clip Length 02:44 Premiere Date 02/05/20

Why Trees Are Living Climate Records

Clip Length 01:29 Premiere Date 02/03/20

Specials

Interview: Good Anxiety, Exercise, and Connection on the Brain with Wendy Suzuki

Length 1:15:20 Premiere Date 07/16/26

Interview: T. Rex to Birds with Steve Brusatte

Length 1:24:42 Premiere Date 07/02/26

Interview: Dark Matter = Black Holes? with David Kaiser

Length 1:23:48 Premiere Date 06/18/26

Interview: Discovering Dark Energy and the Hubble Tension with Nobel Prize Winner Adam Riess

Length 1:16:19 Premiere Date 12/19/25

Interview: Evolution of New Species, Venom, Wings, and More with Sean B. Carroll

Length 1:24:09 Premiere Date 12/05/25

Interview: De-Extinction, Dire Wolves, and Jurassic Park with Beth Shapiro

Length 54:49 Premiere Date 11/21/25

Particles of Thought: The Extremophile’s Guide to Life

Length 1:11:15 Premiere Date 11/04/25

Interview: The Animal Translator with Erich Jarvis

Length 1:03:49 Premiere Date 10/21/25

Interview: Brain Guru with Heather Berlin

Length 1:28:59 Premiere Date 10/07/25

Interview: Bob and Mike’s Big Idea with Bob Hazen and Mike Wong

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Interview: Black Hole Badass with Janna Levin

Length 1:19:54 Premiere Date 09/05/25

Interview: The Deepfake Detective with Hany Farid

Length 1:25:01 Premiere Date 08/26/25

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Length 1:37:18 Premiere Date 08/18/25

When Machines Prescribe

Length 17:19 Premiere Date 04/30/25

Sands of Time

Length 06:47 Premiere Date 09/13/24

Keepers of the Coastline

Length 11:56 Premiere Date 09/13/24

Tides of Tradition

Length 09:47 Premiere Date 09/13/24

Standing the Heat

Length 08:44 Premiere Date 09/13/24

Megadroughts and Indigenous Voices

Length 07:51 Premiere Date 09/13/24

Harvesting the Future

Length 09:22 Premiere Date 09/13/24

Sea Change: Survival in the Gulf of Maine

Length 53:30 Premiere Date 08/07/24

Sea Change: Peril in the Gulf of Maine

Length 53:30 Premiere Date 07/31/24

Sea Change: Bounty in the Gulf of Maine

Length 53:30 Premiere Date 07/24/24

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Length 53:30 Premiere Date 01/01/24

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Length 53:21 Premiere Date 02/15/23

Ancient Maya Metropolis (Español)

Length 53:31 Premiere Date 01/26/22

Picture a Scientist (with Audio Description)

Length 1:52:37 Premiere Date 04/14/21

Treasures Metals Eiffel Tower

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A Labyrinth of Lava

Length 01:13 Premiere Date 11/02/15

From Mud to Rock

Length 01:36 Premiere Date 10/22/15

Finding Stromatolites

Length 01:23 Premiere Date 10/22/15

Stromatolites Were Kings

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Ancient Life

Length 00:28 Premiere Date 10/22/15

Millions of Years Captured in Chalk

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A Fourteen-Foot Fish From Kansas

Length 01:38 Premiere Date 10/22/15

Hell Creek Formation

Length 01:10 Premiere Date 10/22/15

No Dinosaurs Above the Line

Length 02:00 Premiere Date 10/22/15

Mammal Survivors

Length 01:40 Premiere Date 10/22/15

Dinosaur Fossils

Length 01:53 Premiere Date 10/22/15

King of Gore

Length 02:00 Premiere Date 10/22/15

Driving Dinosaur Diversity

Length 01:47 Premiere Date 10/22/15

Pangea

Length 00:56 Premiere Date 10/22/15

Making Granite From Volcanic Rock

Length 02:16 Premiere Date 10/22/15

A Massive Volcanic Eruption

Length 01:14 Premiere Date 10/22/15

Rock Time Capsules

Length 01:18 Premiere Date 10/21/15

The Sandstone Top of the Canyon

Length 01:15 Premiere Date 10/21/15

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Length 00:54 Premiere Date 10/21/15

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Length 00:19 Premiere Date 10/21/15

From Lava to Land

Length 02:14 Premiere Date 10/21/15

Semi-Precious Pebbles

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Length 00:26 Premiere Date 10/21/15

Tearing North America Apart

Length 01:01 Premiere Date 10/21/15

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Length 01:15 Premiere Date 10/21/15

Volcanoes of Sand

Length 01:33 Premiere Date 10/21/15

Rockies 2.0

Length 02:00 Premiere Date 10/21/15

Manhattan Schist

Length 01:13 Premiere Date 10/21/15

Manhattan Skyline

Length 00:52 Premiere Date 10/21/15

New York's Mountains

Length 01:13 Premiere Date 10/21/15

Mendenhall Glacier

Length 02:51 Premiere Date 08/02/15

Monument Rocks 1

Length 01:18 Premiere Date 08/02/15

Monument Rocks 2

Length 01:48 Premiere Date 08/02/15

Exuma Cays 1

Length 01:26 Premiere Date 08/02/15

Exuma Cays 3

Length 00:28 Premiere Date 08/02/15

Exuma Cays 4

Length 03:22 Premiere Date 08/02/15

Gooseberry Falls 1

Length 00:57 Premiere Date 08/02/15

Gooseberry Falls 2

Length 00:24 Premiere Date 08/02/15

Gooseberry Falls 3

Length 01:06 Premiere Date 08/02/15

Gooseberry Falls 4

Length 01:01 Premiere Date 08/02/15

Mount Kilauea

Length 01:30 Premiere Date 08/02/15

Grand Canyon 1

Length 01:19 Premiere Date 08/02/15

Grand Canyon 2

Length 01:05 Premiere Date 08/02/15

Grand Canyon 3

Length 00:58 Premiere Date 08/02/15

Grand Canyon 4

Length 00:19 Premiere Date 08/02/15

Lethal Seas Excerpt 1

Length 04:11 Premiere Date 05/12/15

Lethal Seas Excerpt 2

Length 01:00 Premiere Date 05/12/15

Lethal Seas Excerpt 3

Length 00:35 Premiere Date 05/12/15

Lethal Seas Excerpt 4

Length 00:51 Premiere Date 05/12/15

The Mother of Hubble

Length 02:28 Premiere Date 04/14/15

Formation of a Typhoon

Length 01:34 Premiere Date 06/25/14

Flatfish Larvae

Length 00:51 Premiere Date 05/06/14

RNAi Explained

Length 01:47 Premiere Date 04/22/14

Dolphin Mirror

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Dogs' Sense of Time

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Cockatoo Excerpt

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Solar Power's Promise

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GM Plants

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Non-Newtonian Gel

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Soft-Story Buildings

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Levitation

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Superconductor

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Animal Robot 2

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Therapeutic Hypothermia

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Therapeutic Hypothermia 2

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Therapeutic Hypothermia 3

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Therapeutic Hypothermia 4

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Length 06:14 Premiere Date 10/21/13

Virus Battery

Length 02:21 Premiere Date 10/19/13

Robot Arm

Length 00:56 Premiere Date 10/19/13

Elephant Arm

Length 01:22 Premiere Date 10/19/13

FinGripper

Length 00:55 Premiere Date 10/19/13

Sail Wing

Length 01:02 Premiere Date 10/19/13

Hydrofoil

Length 01:01 Premiere Date 10/19/13

Chicken Feathers

Length 01:56 Premiere Date 10/19/13

KillaCycle

Length 00:48 Premiere Date 10/19/13

How Batteries Work

Length 00:49 Premiere Date 10/19/13

Muon Detection

Length 01:52 Premiere Date 10/19/13

Muons

Length 01:25 Premiere Date 10/19/13

Plants White

Length 02:11 Premiere Date 10/19/13

DNA Patch

Length 01:19 Premiere Date 10/19/13

DNA Vaccine

Length 00:38 Premiere Date 10/19/13

Earthquake Test

Length 02:03 Premiere Date 10/19/13

David Drives

Length 01:27 Premiere Date 10/19/13

Shelley

Length 02:07 Premiere Date 10/19/13

Pitcher Plant

Length 01:48 Premiere Date 10/17/13

SLIPS

Length 01:01 Premiere Date 10/17/13

Hagfish

Length 00:51 Premiere Date 10/17/13

Hagfish Defense

Length 01:36 Premiere Date 10/17/13

Slime Clothes

Length 01:00 Premiere Date 10/17/13

New York City One Year Later: Telecommunications

Length 03:14 Premiere Date 10/16/13

Sneak Peek: Making Stuff Faster

Length 05:06 Premiere Date 10/15/13

David's Race

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Steffen's Plan

Length 01:59 Premiere Date 10/15/13

Traveling Salesman

Length 01:21 Premiere Date 10/15/13

Eye Robot

Length 01:51 Premiere Date 10/10/13

Corkscrew Robot

Length 00:32 Premiere Date 10/10/13

Slow Goldfish

Length 01:39 Premiere Date 10/10/13

Bee Toxin

Length 01:31 Premiere Date 10/10/13

Mild Traumatic Brain Injury

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Invisibility Cloak

Length 01:22 Premiere Date 09/24/13

Shape Memory Alloys

Length 00:32 Premiere Date 09/08/13

Jellyfish

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Oobleck

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Magnetic Oobleck

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Life-Saving Non-Newtonian Fluids

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Silicon Transistors

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Starling 8

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sandy-raw-1-2

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sandy-raw-5-1

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Chemotherapy Goes Small

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The Making of a Cloud Old

Length 03:10 Premiere Date 06/30/13

Why So Many Cloud Types?

Length 03:35 Premiere Date 06/30/13

Clouds and Weather

Length 03:21 Premiere Date 06/30/13

Severe Storms

Length 03:37 Premiere Date 06/30/13

The Climate Wild Card

Length 03:02 Premiere Date 06/30/13

Life on Europa?

Length 02:25 Premiere Date 06/09/13

CloudLab_Megastorm_03

Length 01:41 Premiere Date 05/29/13

CloudLab_Megastorm_04

Length 01:43 Premiere Date 05/29/13

CloudLab_Megastorm_05

Length 01:04 Premiere Date 05/29/13

CloudLab_Megastorm_06

Length 00:40 Premiere Date 05/29/13

CloudLab_Megastorm_07

Length 03:07 Premiere Date 05/29/13

CloudLab_Megastorm_01

Length 00:35 Premiere Date 05/28/13

CloudLab_Megastorm_02

Length 00:31 Premiere Date 05/28/13

What Made the 1918 Flu So Deadly?

Length 01:28 Premiere Date 05/13/13

How the 1918 Flu Infected People

Length 00:25 Premiere Date 05/13/13

Fertilizing the Amazon

Length 03:27 Premiere Date 04/21/13

Flu Probabilities

Length 01:53 Premiere Date 04/16/13

Rare Earth Elements

Length 04:17 Premiere Date 04/01/13

CHNOPS: Ingredients for Life

Length 02:36 Premiere Date 03/12/13

Electromagnetic Spectrum

Length 00:44 Premiere Date 02/28/13

MODIS Sensor

Length 00:26 Premiere Date 02/28/13

Solving the Storage Problem

Length 02:26 Premiere Date 10/25/12

Putting Energy to Use Old

Length 02:14 Premiere Date 10/08/12

Season 47 Episodes

Show Episodes

Show Clips & Previews

Cat Tales

S47 E3 Length 53:21 Premiere Date 02/19/20

Polar Extremes

S47 E1 Length 1:52:46 Premiere Date 02/05/20

Polar Extremes Preview

Preview Length 03:19 Premiere Date 02/05/20

What if Carbon Left Your Tailpipe as Solid Chunks?

Clip Length 02:12 Premiere Date 02/05/20

Plant Fossils Hint at Arctic's Swampy Past

Clip Length 03:02 Premiere Date 02/05/20

What did the East Coast Look Like 3 Million Years Ago?

Clip Length 03:21 Premiere Date 02/05/20

How Carbon Dioxide Warms Planet Earth

Clip Length 02:32 Premiere Date 02/05/20

A Bird's-Eye View of Carbon Emissions

Clip Length 01:56 Premiere Date 02/05/20

This Alaska Community is Losing Sea Ice to Climate Change

Clip Length 04:47 Premiere Date 02/05/20

Fifty Million Years Ago, the Arctic Was a Warm Swamp

Clip Length 02:07 Premiere Date 02/05/20

What’s Causing Greenland’s Biggest Glacier to Melt?

Clip Length 02:04 Premiere Date 02/05/20

How Earth’s Climate Changed Over the Past 500 Million Years

Clip Length 03:25 Premiere Date 02/05/20

This Canadian Cave Has Been Frozen Since the Last Ice Age

Clip Length 03:11 Premiere Date 02/05/20

How Climate Has Shifted Over Millions of Years

Clip Length 02:44 Premiere Date 02/05/20

Why Trees Are Living Climate Records

Clip Length 01:29 Premiere Date 02/03/20

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Chasing Pluto - S42 E13

Premiered On: 07/15/2015

The New Horizon's spacecraft will fly by and take the first detailed images of Pluto. It is the culmination of the spacecraft's nine-year, three-billion-mile journey.

Wednesday July 22, 2026 9:00 pm ET on KET
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Pluto and Beyond - S46 E1

Premiered On: 01/02/2019

Join the mission as the New Horizons spacecraft attempts to fly by NASA's most distant target yet. Since it explored Pluto in 2015, New Horizons is zooming toward Ultima Thule, an object four billion miles from Earth.

Wednesday July 29, 2026 9:00 pm ET on KET
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Return to the Moon - S53 E8

Follow the Artemis II engineers and crew on a perilous 10-day journey to orbit the Moon.

Wednesday August 5, 2026 9:00 pm ET on KET
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Human: Origins - S52 E12

Trace the remarkable origins of Homo sapiens and the crucial moments that shaped our species.

Wednesday August 19, 2026 9:00 pm ET on KET
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Black Hole Universe - S45 E2

Tuesday July 21, 2026 1:00 am ET on KET2
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Black Hole Apocalypse - S45 E1

Tuesday July 14, 2026 1:00 am ET on KET2
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Revolutionary War Weapons - S52 E7

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Athens: Birth of Democracy - S53 E7

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Ancient Desert Death Trap - S52 E17

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Secrets of the Forest - S52 E8

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Top

What did the East Coast Look Like 3 Million Years Ago?

Recent Episodes

Return to the Moon

Rain Bombs

Athens: Birth of Democracy

Stone Age Temple Mystery

Mammal Origins

Can Dogs Talk?

Sponsored by:

Clips & Previews

Polar Extremes Preview

What if Carbon Left Your Tailpipe as Solid Chunks?

Plant Fossils Hint at Arctic's Swampy Past

What did the East Coast Look Like 3 Million Years Ago?

How Carbon Dioxide Warms Planet Earth

A Bird's-Eye View of Carbon Emissions

This Alaska Community is Losing Sea Ice to Climate Change

Fifty Million Years Ago, the Arctic Was a Warm Swamp

What’s Causing Greenland’s Biggest Glacier to Melt?

How Earth’s Climate Changed Over the Past 500 Million Years

This Canadian Cave Has Been Frozen Since the Last Ice Age

How Climate Has Shifted Over Millions of Years

Why Trees Are Living Climate Records

Specials

Interview: Good Anxiety, Exercise, and Connection on the Brain with Wendy Suzuki

Interview: T. Rex to Birds with Steve Brusatte

Interview: Dark Matter = Black Holes? with David Kaiser

Interview: Discovering Dark Energy and the Hubble Tension with Nobel Prize Winner Adam Riess

Interview: Evolution of New Species, Venom, Wings, and More with Sean B. Carroll

Interview: De-Extinction, Dire Wolves, and Jurassic Park with Beth Shapiro

Particles of Thought: The Extremophile’s Guide to Life

Interview: The Animal Translator with Erich Jarvis

Interview: Brain Guru with Heather Berlin

Interview: Bob and Mike’s Big Idea with Bob Hazen and Mike Wong

Interview: Black Hole Badass with Janna Levin

Interview: The Deepfake Detective with Hany Farid

Interview: Mind of a Fossil Hunter with Kirk Johnson

When Machines Prescribe

Sands of Time

Keepers of the Coastline

Tides of Tradition

Standing the Heat

Megadroughts and Indigenous Voices

Harvesting the Future

Sea Change: Survival in the Gulf of Maine

Sea Change: Peril in the Gulf of Maine

Sea Change: Bounty in the Gulf of Maine

When Whales Could Walk (Español)

Ancient Builders of the Amazon (Español)

Ancient Maya Metropolis (Español)

Picture a Scientist (with Audio Description)

Treasures Metals Eiffel Tower

A Labyrinth of Lava

From Mud to Rock

Finding Stromatolites

Stromatolites Were Kings

Ancient Life

Millions of Years Captured in Chalk

A Fourteen-Foot Fish From Kansas

Hell Creek Formation

No Dinosaurs Above the Line

Mammal Survivors

Dinosaur Fossils

King of Gore

Driving Dinosaur Diversity

Pangea

Making Granite From Volcanic Rock

A Massive Volcanic Eruption

Rock Time Capsules

The Sandstone Top of the Canyon

Fossil-Filled Limestone

The Grand Canyon's Oldest Rocks

From Lava to Land

Semi-Precious Pebbles

Five Steps of Volcanic Rock

Tearing North America Apart

Fossilized Sand Dunes

Volcanoes of Sand

Rockies 2.0

Manhattan Schist