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continental drift

100 Greatest Discoveries: Continental Drift
Image: Discovery

100 Greatest Discoveries: Continental Drift

In 1912, Alfred Wegener proposed his theory of continental drift. Based on evidence and research, he believed that all the continents were once connected in a massive supercontinent he called "Pangaea." They subsequently moved apart to their present-day locations. But Wegener's theory was missing one key piece of information.

Discovery
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Wegener’s Theory

Wegener’s Theory

Before Alfred Wegner's theory of continental drift, people believe mountains were formed because Earth contracted as it cooled. Explore before and after Wegener. More...

Article
BBC
Continental Drift

Continental Drift

Even when you are standing still, you are moving. Or rather, the ground under your feet is moving. This video looks at how the continents changed over time and will continue to change. More...

Video
National Geographic
When Continental Drift Was Considered Pseudoscience

When Continental Drift Was Considered Pseudoscience

It's been about 100 years since Alfred Wegener theorized that the continents were moving apart. Other scientists ridiculed him. Now we know he was right. Read his story here. More...

Profile
Smithsonian
Continental Divide: The Breakup of Pangaea

Continental Divide: The Breakup of Pangaea

Explore how Pangaea, a massive landmass covering the Earth, first broke up into Gondwana and Laurasia and then into the continents we see today.
More...

Interactive
Exploratorium
How Plate Tectonics Works

How Plate Tectonics Works

Back in 1912, no one took the theory of continental drift seriously because no one could determine how continents moved. That eventually changed. More...

Article
Extreme Science
Jack Oliver, Who Proved Continental Drift, Dies at 87

Jack Oliver, Who Proved Continental Drift, Dies at 87

Working in the South Pacific, Oliver used seismic data to make a convincing case that continental drift was indeed happening. More...

Profile
New York Times
Pangaea Begins to Break Up

Pangaea Begins to Break Up

Hold on! Earth's a bumpy ride. The continents have been moving for a long time — and they still are. Explore Earth's moving tectonic plates. More...

Video
BBC
Pangaea, Gondwanaland, Laurasia, and Tethys

Pangaea, Gondwanaland, Laurasia, and Tethys

Continental drift is an extremely slow process. Take a look at how the continents have changed since they formed Pangaea. More...

Images
EarthGuide
People and Discoveries: Wegener Proposes Idea of Continental Drift

People and Discoveries: Wegener Proposes Idea of Continental Drift

Ever have a great idea but couldn't get anyone to listen to you? Alfred Wegener saw that the continents fit together like puzzle pieces, but few understood why that was significant. More...

Article
PBS
Slimmer Indian Continent Drifted 10 Times Faster

Slimmer Indian Continent Drifted 10 Times Faster

India was once a separate continent, then it crashed into Asia. While most continents move slowly, the Indian plate has moved much faster. Now scientists think they know why. More...

Article
National Geographic
The Power of the Planet: Pangaea

The Power of the Planet: Pangaea

Travel back in time 225 million years, when all of Earth's continents were joined together into one super continent. Then watch plates move and Pangaea becomes the 7 we know today. More...

Video
BBC

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