In this video Paul Andersen explains in more detail the history of the Earth. He shows how the history of the Earth is written in the rocks that are built up over time. Fossils allow us to compare different rock layers relative to one...

This video explores the layers of the Earth, from the crust to the inner core, comparing it to the layers of a sandwich. They discuss the composition and characteristics of each layer, highlighting the unique properties of the mantle,...

In the wake of World War 2, Clair Patterson embarked on a scientific quest to find out how old the Earth really is. His hard work paid off, but it also revealed a modern danger.

The land surface of the Earth accounts for 1% of its total volume. Travel from the core to Earth's surface, examining the layers that make up our planet. Earth Science - Geology - Learning Points. The Earth is made up of four layers. The...

Our understanding of the world has to start somewhere! And while early ideas like the Hollow Earth Theory are mostly wrong and sound silly to us now, that doesn’t mean they weren’t important.

There is no natural hole to the center of the planet Earth, so seeing what is in the center is difficult. Scientists haven’t ever drilled deeper than 2,000 feet into the Earth’s crust. Seismographs are used to measure earthquakes, which...

For years, geologists have been searching for an explanation for two strange blobs of Earth's mantle that are denser than the rest. It turns out, they may not be original parts of Earth at all.

Let's take a journey inside the Earth and explore the different layers – crust, mantle, outer core and inner core.
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About 1.8–0.8 billion ago, the Earth went through a period known as the Boring Billion, where not a lot changed in terms of geology, evolution, or even the number of hours in a day. Some scientists call it “the dullest period in Earth’s...

When a theory makes a prediction that disagrees with an experimental test, sometimes it means we should throw the theory away. But what if that theory has otherwise produced the most successful predictions in all of physics? Then, that...

Explore the origins of one of the coolest geologic formations in the world, West Africa's Richat Structure.

A video entitled "Layers of History" which discusses how Earth's geographic features were formed, with a focus on the study of rock layers through absolute and relative dating.

From treetops to rivers to the bedrock below, there is constant activity going on in what we can think of as the “skin” of our planet. It’s called the critical zone, the active layer of the Earth where life-forms, from microbes to...

Cave diver Jill Heinerth explores the hidden underground waterways coursing through our planet. Working with biologists, climatologists and archaeologists, Heinerth unravels the mysteries of the life-forms that inhabit some of the...

We are approaching a whole new era! . . .or at least a new epoch. Michael Aranda explains how humans are leaving their mark on the Geologic Time Scale.

Last week we went up up up a mountain. Well, today we're going down down down into the ocean to see what habitats await us there. Yep, the ocean has layers and the types of things we encounter there change the deeper we go.

Recently, a group of scientists have declared that the start of the Anthropocene, the time of outsize human influence on Earth, to be Crawford Lake in Canada. But how can a time be a place? We'll explain, and maybe grab some maple...

In this talk, Dr. Paul Newman tells the story of how scientists and policy-makers safeguarded the Earth’s ozone layer and the world we avoided by by regulating chlorofluorocarbons (CFCs) . Back in the 60s, we used chlorofluorocarbons,...

This video uses a cake analogy to describe Earth's structure. It compares the Earth's crust to cake batter, the mantle to a mixed ingredient layer, and the core to the sweet, hot center of the cake—highlighting the different types of...

In this video you are going to learn how we used earthquakes to look deep into the earth. The study of S and P waves helped us understand that the Earth has a layered structure, with a solid inner core surrounded by an outer liquid core.

A Perlan glider uses air rising over the southern Andes to reach record heights and allow scientists to study the ozone layer. ONE STRANGE ROCK AIRS MONDAYS 10/9c. ➡ Subscribehttp://bit.ly/NatGeoSubscribe' target='_blank'...

A layer in the Earth's atmosphere at 13 to 20km altitude with an unusually high concentration of ozone gas.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and...

Learn about the two main layers of the atmosphere: the troposphere and the stratosphere. The troposphere is full of weather and ‘bad’ ozone, and above that, is the stratosphere, where ‘good’ ozone protects us against dangerous UV light....

The Global-scale Observations of the Limb and Disk, or GOLD, instrument launches aboard a commercial communications satellite in January 2018 to inspect the dynamic intermingling of space and Earth’s uppermost atmosphere. Together,...