Instructional Video9:25
PBS

The World Before Plate Tectonics

12th - Higher Ed
There was a time in Earth’s history that was so stable, geologists once called it the Boring Billion. But the fact is, this period was anything but boring. In fact, it set the stage for our modern version of plate tectonics - and...
Instructional Video12:02
PBS

The Genes We Lost Along the Way

12th - Higher Ed
Our DNA holds thousands of dead genes and we’ve only just begun to unravel their stories. But one thing is already clear: we’re not just defined by the genes that we’ve gained over the course of our evolution, but also by the genes that...
Instructional Video7:33
PBS

The Bear-Sized Beaver That Couldn’t Build A Dam

12th - Higher Ed
It’s important to us that you understand how big this beaver was. Just like modern beavers, it was semiaquatic -- it lived both on the land and in the water. The difference is that today’s beavers do a pretty special thing - one that the...
Instructional Video10:29
PBS

How Volcanoes Froze the Earth (Twice)

12th - Higher Ed
Over 600 million years ago, sheets of ice coated our planet on both land and sea. How did this happen? And most importantly for us, why did the planet eventually thaw again? The evidence for Snowball Earth is written on every continent...
Instructional Video10:12
PBS

How Earth's First, Unkillable Animals Saved the World

12th - Higher Ed
They have survived every catastrophe and every mass extinction event that nature has thrown at them. And by being the little, filter-feeding, water-cleaning creatures that they are, sponges may have saved the world.
Instructional Video8:54
PBS

Darwin Missed An Example of Evolution Right Under His Nose

12th - Higher Ed
Charles Darwin encountered a tiny fox-like creature during his famous voyage but instead of discovering its fascinating evolutionary story, he just knocked it on the head with his geology hammer.
Instructional Video11:04
PBS

A Natural History of Mars

12th - Higher Ed
While Earth’s natural history has been playing out over the last few billion years, another epic planetary saga has also been unfolding right next door.
Instructional Video11:09
PBS

When a Billion Years Disappeared

12th - Higher Ed
In some places, the rocks below the Great Unconformity are about 1.2 billion years older than those above it. This missing chapter in Earth’s history might be linked to a fracturing supercontinent, out-of-control glaciers, and maybe the...
Instructional Video9:05
Be Smart

The Impossible Hugeness of Deep Time

12th - Higher Ed
Humans have a hard time with really big numbers, especially when it comes to DEEP TIME. The history of the Earth took a lot longer than you think, trust me. But I’m here to help you put it in perspective. With some string.
Instructional Video11:24
Be Smart

Recycling Is Broken. Here’s How We Can Fix It.

12th - Higher Ed
If everyone would just put more in the recycling bin instead of the trash can, the world would be a better place. Right? Well, that’s not exactly true. For many items that end up in the recycling bin, you’ve actually created more trash...
Instructional Video13:41
Be Smart

How We Solved the Greatest Riddle In Navigation

12th - Higher Ed
Humanity’s drive to explore our planet is one of the defining characteristics of our species. But exploration only works if you know where you are at any given time. Not so easy when you are out at sea with no visible landmarks and the...
Instructional Video5:27
Be Smart

Why do Trees Talk to Each Other?

12th - Higher Ed
Walk into any forest, and beneath your feet is an elaborate social network that helps make life on Earth possible. It’s called the “Wood Wide Web”, a massive and intricate network of fungi that exchange water, nutrients, and chemical...
Instructional Video5:00
Be Smart

Visiting the Largest Bat Colony on Earth!

12th - Higher Ed
Visiting the Largest Bat Colony on Earth!
Instructional Video8:24
Be Smart

Sunlight Is Way Older Than You Think. Here’s Why…

12th - Higher Ed
If the sun instantly switched off like a light bulb–which can’t happen, by the way–then we wouldn’t know for almost 8 and a half minutes. Light travels at the fastest speed there is, but it still takes almost 500 seconds to get to Earth....
Instructional Video8:05
Be Smart

Nature's Most Amazing Animal Superpowers

12th - Higher Ed
Comic book heroes ain't got nothin' on evolution.
Instructional Video8:45
Be Smart

Is This Why We Haven’t Found Alien Civilizations? | STELLAR

12th - Higher Ed
Looking up at the stars makes you wonder: what and who is out there? And why haven’t we seen any other intelligent civilizations given the vast size and age of the universe? They’re complicated questions and although we haven’t met any...
Instructional Video10:05
Be Smart

Is There Life on Earth?

12th - Higher Ed
If we lived light years from Earth, how would we know there’s life here? Let’s take a look at the search for extraterrestrial life on habitable exoplanets, and discover what biosignatures would show someone else that we’re here.
Instructional Video8:30
Be Smart

Why No One Can Agree What’s REALLY the Tallest Mountain

12th - Higher Ed
What's the tallest mountain on Earth? It might seem like an easy question to answer, but in reality it's one that brings up more NEW questions than answers. It turns out that the way we measure mountains rests on a lot of approximations,...
Instructional Video7:22
Be Smart

Why Don't Birds Lay Square Eggs?

12th - Higher Ed
What is ”egg-shaped” even? I used to think it was the shape of a chicken egg. Then one day I saw a collection of eggs from lots of different bird species, and I realized just how many different kind of egg shapes there really are! I had...
Instructional Video7:13
Be Smart

Where On Earth Do You Weigh The Least?

12th - Higher Ed
You may have heard that a kilogram of feathers weighs the same as a kilogram of steel, but that all depends on where you weigh them. This video is all about the difference between mass and weight, and how weirdly awesome Earth’s gravity...
Instructional Video5:10
Be Smart

When Will We Stop Using Oil?

12th - Higher Ed
We've heard news of "peak oil" and "the end of the oil age" for years now, but we keep coming up with ways to find and pump more of it to the surface. Rising CO2 levels and the changing climate that results from burning fossil fuels mean...
Instructional Video5:55
Be Smart

What Would Happen if ONE MILLION Species Went Extinct?

12th - Higher Ed
A massive new study has just been released showing that human activities are threatening Earth’s other life forms in some very bad ways. One million species may be at risk of extinction. Just let that sink in. Isn’t the Anthropocene...
Instructional Video10:31
Be Smart

This Is How Astronauts Drink Coffee In Space!

12th - Higher Ed
I love coffee. Like, a lot. You know who else loves coffee? Astronauts! And also the people who help them do awesome things in space (I think NASA might be powered by coffee). But how do astronauts actually drink coffee in space, aboard...
Instructional Video12:45
Be Smart

The Unbelievable Story of Earth’s Most Epic Flood

12th - Higher Ed
One day around 15,000 years ago, a wall of ice 2,000 feet tall and 30 miles wide suddenly broke wide open, and it unleashed the largest flood that we know of in the history of Earth. Come and hit the road with me as we search for the...