SciShow
The History Hidden in Martian Dunes
The Red Planet was once more like Earth, with a thicker atmosphere and liquid water. Now, scientists are looking for clues to its past in the planet’s ancient fossil dunes, barchan dunes, and ghost dunes.
SciShow
7 Ways We Know What's Inside the Earth
Thanks to some amazing scientific insights, we know a lot about the interior of our planet - even though we’ve never even made it through the crust.
TED-Ed
TED-Ed: What is dust made of? - Michael Marder
Less than a tenth the size of an ant, a dust mite's whole world is contained in the dusty film under a bed or in a forgotten corner. This realm is right under our noses, but from our perspective, the tiny specks of brilliant color blend...
SciShow
Why There's a Straight Line Through Scotland
If you take a look at a map of Scotland, you'll notice an eerily straight line running through the highlands, this is the Great Glen Fault the product of half a billion years of time and geology.
MinuteEarth
Where Does One Ocean End And Another Begin?
Earth's ocean water is continuous. How can we divide it into sections that are more useful?
SciShow
The Mystery of the Black Diamond
There are still lots of unsolved mystery about carbonados ("black diamonds"), and geologists even think those mystery rocks come from outside of Earth.
TED Talks
TED: Clues to prehistoric times, found in blind cavefish | Prosanta Chakrabarty
TeD Fellow Prosanta Chakrabarty explores hidden parts of the world in search of new species of cave-dwelling fish. These subterranean creatures have developed fascinating adaptations, and they provide biological insights into blindness...
SciShow
Can Animals Predict Earthquakes?
You might have heard about animals behaving oddly right before an earthquake hits. But are these reports more than just anecdotes?
SciShow
The Only Non-Human Mammal that Farms
This week, we discovered that some gophers are not the pests they’re made out to be, perhaps even sharing some of the farming behaviors of humans. And a martian rock a million years in the making finally has its origin story.
SciShow
How the Oldest Rocks on Earth Changed History
Scientists have uncovered the oldest rocks from Earth, and they're shaking up what we knew about Earth's history.
SciShow
The Siberian Traps: A 250 Million Year Old Crime Scene
The event that killed the dinosaurs 66 million years ago might be the most famous mass extinction ever, but it's not the only one in Earth’s history, nor is it the worst... not by a long shot.
TED Talks
TED: The case to infect volunteers with COVID-19 to accelerate vaccine testing | Nir Eyal
Conventional vaccine testing is a slow, years-long process. As thousands of people continue to die each day from COVID-19, bioethicist Nir Eyal proposes a radical idea that could dramatically accelerate the vaccine development timeline:...
SciShow
How Earth Recycled a Mountain Range
Mountains take can take billions of years to form, but the Adirondack Mountains got ahead by recycling itself.
TED Talks
Karen Lloyd: The mysterious microbes living deep inside the earth -- and how they could help humanity
The ground beneath your feet is home to a massive, mysterious world of microbes -- some of which have been in the earth's crust for hundreds of thousands of years. What's it like down there? Take a trip to the volcanoes and hot springs...
SciShow
Vikings, Volcanoes, and Sheep: How Geology Rewrites Ancient History
Vikings, volcanoes, and sheep don’t immediately seem like they should all be connected, but this unlikely trio is actually informing our knowledge of global history.
TED Talks
TED: Deep under the earth's surface, discovering beauty and science | Francesco Sauro
Cave explorer and geologist Francesco Sauro travels to the hidden continent under our feet, surveying deep, dark places inside the earth that humans have never been able to reach before. In the spectacular tepuis of South America, he...
TED Talks
Eric Sanderson: New York -- before the City
400 years after Hudson found New York harbor, Eric Sanderson shares how he made a 3D map of Mannahatta's fascinating pre-city ecology of hills, rivers, wildlife -- accurate down to the block -- when Times Square was a wetland and you...
Bozeman Science
Law of Superposition
Mr. Andersen explains the law of superposition and the principle of original horizontality. He uses an animation to explain how rock layers can accumulate over time.
SciShow
These Mysterious Lakes Disappeared...and Came Back
Around the world, there are lakes that disappear without warning. Then, even stranger, they come back! This can happen for lots of different reasons, and the fact that they vanish and reappear reveals some surprising connections.
SciShow
A Brief History of Life: Survival Is Hard
It turns out life may have gotten its start pretty early in Earth's history, and while the first couple billion years saw several important developments, the period was still dominated by very simple life forms. This is our first...
PBS
How Asteroid Mining Will Save Earth
The days of oil may be numbered, but there's another natural resource that's never been touched, Asteroids.
SciShow
What Makes Earth’s Magnetic Field Change Direction?
You might have heard that Earth is due for a complete flip of its magnetic field. And while our planet does have a history of this behavior, predictions of when it might happen are too complex to estimate a date for.
SciShow
The How, Why, and How Much of Oil
Everyone does it -- using oil, that is. But how much do we have left? How do scientists find it? And where are they looking for it now that the easiest pickings have been taken? Hank has the answers to the how, why and how much of oil....