How The Earth Was Made
Oceans (2:38)
Where did Earth's water come from? Scientists explain a surprising possible source.
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The Age of Earth
The Age of EarthVideo Clip (2:59)
Video Clip (2:59)
How old is the Earth? It took scientists years to find out.
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Erosion
ErosionVideo Clip (2:25)
Video Clip (2:25)
The movement of continental plates and water combined to carve out a spectacular landscape.
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Oceans
OceansVideo Clip (2:38)
Video Clip (2:38)
Where did Earth's water come from? Scientists explain a surprising possible source.
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Mega Tsunamis
Mega TsunamisVideo Clip (3:25)
Video Clip (3:25)
Large scale landslides located next to bodies of water are known to cause extreme tsunamis, which have wave heights reaching several thousand feet.
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The Secrets of Meteorites
The Secrets of MeteoritesVideo Clip (2:59)
Video Clip (2:59)
Broken pieces of asteroids called meteorites contain valuable information about our solar system and planet.
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Deepest Place on Earth
Deepest Place on EarthVideo Clip (3:36)
Video Clip (3:36)
The Marianas Trench is where the ocean floor disappears into the center of the earth and is known as the deepest place on earth.
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Creation of Yellowstone
Creation of YellowstoneVideo Clip (3:23)
Video Clip (3:23)
The geological history of Yellowstone National Park dates back to the formation of the North American continent.
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The Krakatoa Volcano
The Krakatoa VolcanoVideo Clip (3:25)
Video Clip (3:25)
The active volcano island of Krakatoa lies between the islands of Java and Sumatra in the Sundra Strait, and is one of the most dangerous volcanoes in the world.
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Mountain Building
Mountain BuildingVideo Clip (2:14)
Video Clip (2:14)
How are mountains formed? Find out more about volcanism, erosion and colliding continents.
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Hutton's Discovery
Hutton's DiscoveryVideo Clip (2:32)
Video Clip (2:32)
Just over 200 years ago, a Scottish farmer discovered the key to determining the age of the Earth.
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New York Harbor
New York HarborVideo Clip (3:01)
Video Clip (3:01)
Today New York is one of the largest natural harbors in the world, but towards the end of the last ice age the ports entrance was blocked by a large wall of debris.
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Swamp World
Swamp WorldVideo Clip (2:36)
Video Clip (2:36)
Tropical swamps dominated Earth for 60 million years.
