Making North America: Origins

The epic 3 billion-year story of how our continent came to be. From the palm trees that once flourished in Alaska to titanic eruptions that nearly tore the Midwest in two, discover how forces of almost unimaginable power gave birth to North America.

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Preview Season 42 Episode 20 Length 00:30 Premiere: 11/04/15

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 E4 Length 53:38 Premiere Date 02/11/26

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S53 E3 Length 53:39 Premiere Date 02/04/26

Clips & Previews

Secrets of the Ghost Forest

Clip Length 03:07 Premiere Date 07/02/17

Making North America: Origins Preview

Preview Length 00:30 Premiere Date 11/04/15

Time Travel in the Grand Canyon

Clip Length 04:33 Premiere Date 11/04/15

A Labyrinth of Lava

Clip Length 01:18 Premiere Date 10/27/15

Animal Mummies Preview

Preview Length 00:30 Premiere Date 10/22/15

Sea Level Rise: When 1 in = 2 ft

Clip Length 02:42 Premiere Date 10/20/15

Digital Domain of Warfare

Clip Length 01:56 Premiere Date 10/13/15

CyberWar Threat Preview

Preview Length 00:30 Premiere Date 10/07/15

The Power of the Flood Myth

Clip Length 03:32 Premiere Date 09/29/15

Making North America Sneak Peek

Preview Length 04:03 Premiere Date 08/30/15

Space Pics That Amaze Scientists

Clip Length 02:52 Premiere Date 08/24/15

Ghosts of Subatomic Particles

Clip Length 01:42 Premiere Date 03/17/15

Invisible Universe Revealed Preview

Preview Length 00:30 Premiere Date 03/03/15

Specials

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

Length 1:11:13 Premiere Date 09/23/25

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

Interview: Mind of a Fossil Hunter with Kirk Johnson

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

When Whales Could Walk (Español)

Length 53:30 Premiere Date 01/01/24

Ancient Builders of the Amazon (Español)

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

Length 02:09 Premiere Date 12/09/16

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

Length 01:05 Premiere Date 10/22/15

Ancient Life

Length 00:28 Premiere Date 10/22/15

Millions of Years Captured in Chalk

Length 01:17 Premiere Date 10/22/15

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

Fossil-Filled Limestone

Length 00:54 Premiere Date 10/21/15

The Grand Canyon's Oldest Rocks

Length 00:19 Premiere Date 10/21/15

From Lava to Land

Length 02:14 Premiere Date 10/21/15

Semi-Precious Pebbles

Length 00:57 Premiere Date 10/21/15

Five Steps of Volcanic Rock

Length 00:26 Premiere Date 10/21/15

Tearing North America Apart

Length 01:01 Premiere Date 10/21/15

Fossilized Sand Dunes

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

Length 03:18 Premiere Date 04/22/14

Dogs' Sense of Time

Length 01:28 Premiere Date 04/13/14

Cockatoo Excerpt

Length 01:30 Premiere Date 04/08/14

How Solar Cells Work

Length 00:33 Premiere Date 02/26/14

Solar Power's Promise

Length 00:51 Premiere Date 02/26/14

Microneedle

Length 01:41 Premiere Date 12/30/13

GM Plants

Length 01:27 Premiere Date 11/15/13

Non-Newtonian Gel

Length 01:00 Premiere Date 11/15/13

Soft-Story Buildings

Length 07:36 Premiere Date 11/13/13

Levitation

Length 00:50 Premiere Date 10/24/13

Superconductor

Length 01:47 Premiere Date 10/24/13

Animal Robot 1

Length 02:35 Premiere Date 10/24/13

Animal Robot 2

Length 02:02 Premiere Date 10/24/13

Therapeutic Hypothermia

Length 01:11 Premiere Date 10/24/13

Therapeutic Hypothermia 2

Length 01:07 Premiere Date 10/24/13

Therapeutic Hypothermia 3

Length 01:43 Premiere Date 10/24/13

Therapeutic Hypothermia 4

Length 02:01 Premiere Date 10/24/13

Swarming Robots

Length 01:31 Premiere Date 10/21/13

Sneak Peek: Making Stuff Wilder

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

Length 01:28 Premiere Date 10/15/13

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

Length 03:36 Premiere Date 10/07/13

Invisibility Cloak

Length 01:22 Premiere Date 09/24/13

Shape Memory Alloys

Length 00:32 Premiere Date 09/08/13

Jellyfish

Length 00:38 Premiere Date 09/08/13

Bird Wings

Length 01:56 Premiere Date 09/08/13

Shrinking Chips

Length 01:06 Premiere Date 09/05/13

Pizza Transistor

Length 01:34 Premiere Date 09/05/13

Graphene

Length 01:11 Premiere Date 09/05/13

Wheat Straw Plastic

Length 01:04 Premiere Date 08/29/13

Solar Leaves

Length 00:53 Premiere Date 08/29/13

Battle Jacket

Length 01:49 Premiere Date 08/29/13

Oobleck

Length 00:40 Premiere Date 08/29/13

Magnetic Oobleck

Length 00:54 Premiere Date 08/29/13

Life-Saving Non-Newtonian Fluids

Length 01:43 Premiere Date 08/29/13

Silicon Transistors

Length 00:50 Premiere Date 08/29/13

Starling 8

Length 00:44 Premiere Date 07/15/13

sandy-raw-1-2

Length 00:04 Premiere Date 07/08/13

sandy-raw-5-1

Length 01:02 Premiere Date 07/08/13

Chemotherapy Goes Small

Length 01:17 Premiere Date 07/01/13

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 42 Episodes

Show Episodes

Show Clips & Previews

Inside Einstein's Mind

S42 E23 Length 53:07 Premiere Date 11/25/15

Making North America: Origins

S42 E20 Length 53:35 Premiere Date 11/04/15

Secrets of the Ghost Forest

Clip Length 03:07 Premiere Date 07/02/17

Making North America: Origins Preview

Preview Length 00:30 Premiere Date 11/04/15

Time Travel in the Grand Canyon

Clip Length 04:33 Premiere Date 11/04/15

A Labyrinth of Lava

Clip Length 01:18 Premiere Date 10/27/15

Animal Mummies Preview

Preview Length 00:30 Premiere Date 10/22/15

Sea Level Rise: When 1 in = 2 ft

Clip Length 02:42 Premiere Date 10/20/15

Digital Domain of Warfare

Clip Length 01:56 Premiere Date 10/13/15

CyberWar Threat Preview

Preview Length 00:30 Premiere Date 10/07/15

The Power of the Flood Myth

Clip Length 03:32 Premiere Date 09/29/15

Making North America Sneak Peek

Preview Length 04:03 Premiere Date 08/30/15

Space Pics That Amaze Scientists

Clip Length 02:52 Premiere Date 08/24/15

Ghosts of Subatomic Particles

Clip Length 01:42 Premiere Date 03/17/15

Invisible Universe Revealed Preview

Preview Length 00:30 Premiere Date 03/03/15

See All Episodes

TV Schedules

Jump to Recent Airdates

Upcoming

When Whales Could Walk - S51 E1

Giant fossils uncovered in the Sahara Desert reveal new secrets of how whales evolved.

Sunday May 24, 2026 7:00 pm ET on KET2
Sunday May 24, 2026 6:00 pm CT on KET2
Tuesday May 26, 2026 1:00 am ET on KET2
Tuesday May 26, 2026 12:00 am CT on KET2

Great Mammoth Mystery - S49 E3

Sir David Attenborough explores a unique site in southern England with rare traces of Ice Age mammoths and Neanderthals. How did humans survive the frigid climate, and did they have the tools and talent to hunt the giant beasts?

Wednesday May 27, 2026 9:00 pm ET on KET
Wednesday May 27, 2026 8:00 pm CT on KET
Thursday May 28, 2026 5:00 pm ET on KET
Thursday May 28, 2026 4:00 pm CT on KET
Friday May 29, 2026 2:00 am ET on KET
Friday May 29, 2026 1:00 am CT on KET
Sunday May 31, 2026 7:00 pm ET on KET2
Sunday May 31, 2026 6:00 pm CT on KET2
Tuesday June 2, 2026 1:00 am ET on KET2
Tuesday June 2, 2026 12:00 am CT on KET2

Can Dogs Talk? - S53 E3

Scientists conduct the largest animal communication study in history to see if innovative word buttons truly enable dogs to talk.

Sunday June 7, 2026 7:00 pm ET on KET2
Sunday June 7, 2026 6:00 pm CT on KET2
Tuesday June 9, 2026 1:00 am ET on KET2
Tuesday June 9, 2026 12:00 am CT on KET2

Alaskan Dinosaurs - S48 E21

Wielding chainsaws to extract fossils frozen into the permafrost and flying drones to map thousands of footprints, intrepid paleontologists discover that dinosaurs thrived in the cold and dark of the Arctic Circle.

Wednesday June 10, 2026 9:00 pm ET on KET
Wednesday June 10, 2026 8:00 pm CT on KET
Thursday June 11, 2026 5:00 pm ET on KET
Thursday June 11, 2026 4:00 pm CT on KET
Friday June 12, 2026 2:00 am ET on KET
Friday June 12, 2026 1:00 am CT on KET
Sunday June 14, 2026 7:00 pm ET on KET2
Sunday June 14, 2026 6:00 pm CT on KET2
Tuesday June 16, 2026 1:00 am ET on KET2
Tuesday June 16, 2026 12:00 am CT on KET2

Secrets of the Forest - S52 E8

Scientists gather data on how forests work and try to figure out how they can help tackle the twin threats of climate change and species extinction.

Wednesday June 17, 2026 9:00 pm ET on KET
Wednesday June 17, 2026 8:00 pm CT on KET
Thursday June 18, 2026 5:00 pm ET on KET
Thursday June 18, 2026 4:00 pm CT on KET
Friday June 19, 2026 2:00 am ET on KET
Friday June 19, 2026 1:00 am CT on KET
Sunday June 21, 2026 7:00 pm ET on KET2
Sunday June 21, 2026 6:00 pm CT on KET2
Tuesday June 23, 2026 1:00 am ET on KET2
Tuesday June 23, 2026 12:00 am CT on KET2

Jump to Upcoming Airdates

Recent

When Whales Could Walk - S51 E1

Friday May 22, 2026 2:00 am ET on KET
Friday May 22, 2026 1:00 am CT on KET
Thursday May 21, 2026 5:00 pm ET on KET
Thursday May 21, 2026 4:00 pm CT on KET
Wednesday May 20, 2026 9:00 pm ET on KET
Wednesday May 20, 2026 8:00 pm CT on KET

Decoding the Universe: Quantum - S51 E14

Tuesday May 19, 2026 1:00 am ET on KET2
Tuesday May 19, 2026 12:00 am CT on KET2
Sunday May 17, 2026 7:00 pm ET on KET2
Sunday May 17, 2026 6:00 pm CT on KET2
Friday May 15, 2026 2:00 am ET on KET
Friday May 15, 2026 1:00 am CT on KET
Thursday May 14, 2026 5:00 pm ET on KET
Thursday May 14, 2026 4:00 pm CT on KET
Wednesday May 13, 2026 9:00 pm ET on KET
Wednesday May 13, 2026 8:00 pm CT on KET

Decoding the Universe: Cosmos - S51 E8

Tuesday May 12, 2026 1:00 am ET on KET2
Tuesday May 12, 2026 12:00 am CT on KET2
Sunday May 10, 2026 7:00 pm ET on KET2
Sunday May 10, 2026 6:00 pm CT on KET2
Friday May 8, 2026 2:00 am ET on KET
Friday May 8, 2026 1:00 am CT on KET
Thursday May 7, 2026 5:00 pm ET on KET
Thursday May 7, 2026 4:00 pm CT on KET
Wednesday May 6, 2026 9:00 pm ET on KET
Wednesday May 6, 2026 8:00 pm CT on KET

Athens: Birth of Democracy - S53 E7

Tuesday May 5, 2026 1:00 am ET on KET2
Tuesday May 5, 2026 12:00 am CT on KET2
Sunday May 3, 2026 7:00 pm ET on KET2
Sunday May 3, 2026 6:00 pm CT on KET2
Friday May 1, 2026 2:00 am ET on KET
Friday May 1, 2026 1:00 am CT on KET
Thursday April 30, 2026 5:00 pm ET on KET
Thursday April 30, 2026 4:00 pm CT on KET
Wednesday April 29, 2026 9:00 pm ET on KET
Wednesday April 29, 2026 8:00 pm CT on KET

Rain Bombs - S53 E5

Tuesday April 28, 2026 1:00 am ET on KET2
Tuesday April 28, 2026 12:00 am CT on KET2
Sunday April 26, 2026 7:00 pm ET on KET2
Sunday April 26, 2026 6:00 pm CT on KET2
Friday April 24, 2026 2:00 am ET on KET
Friday April 24, 2026 1:00 am CT on KET
Thursday April 23, 2026 5:00 pm ET on KET
Thursday April 23, 2026 4:00 pm CT on KET
Wednesday April 22, 2026 9:00 pm ET on KET
Wednesday April 22, 2026 8:00 pm CT on KET

Return to the Moon - S53 E8

Tuesday April 21, 2026 1:00 am ET on KET2
Tuesday April 21, 2026 12:00 am CT on KET2

Top

Making North America: Origins

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

Secrets of the Ghost Forest

Making North America: Origins Preview

Time Travel in the Grand Canyon

A Labyrinth of Lava

Animal Mummies Preview

Sea Level Rise: When 1 in = 2 ft

Digital Domain of Warfare

CyberWar Threat Preview

The Power of the Flood Myth

Making North America Sneak Peek

Space Pics That Amaze Scientists

Ghosts of Subatomic Particles

Invisible Universe Revealed Preview

Specials

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

Manhattan Skyline

New York's Mountains

Mendenhall Glacier