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SciShow
So You Need To Dispose Of Some Nuclear Waste…
We all have to deal with getting rid of trash. But what do we do when that trash is radioactive? Here's a few of the weirdest solutions to the green glowy problem of storing radioactive waste for decades to come.
SciShow
How Crocodilians Just Keep on Surviving
All crocodilians look more or less the same today, but to survive two different mass extinctions, they've had to change a lot. Here's how they pulled it off.
SciShow
Using Microbes to Mine the Moon
Rocky bodies like moons, asteroids, and comets are chock full of resources, from water, to helium-3, to rare earth elements. But how can we access them? Some scientists have proposed using microbes to aid in the mining of certain metals.
SciShow
Why More Young People Are Getting Colon Cancer
More and more people under 50 are being diagnosed with colorectal cancer. These young people don’t seem to have any of the usual risk factors for colorectal cancer, like an inherited genetic mutation. after some sleuthing, scientists...
SciShow
The Asteroids Big Enough to Wipe Out All Life
Correction
07:11 We made a conversion error! The asteroid in this sentence should be 95,000 meters or 95 km. The conclusion (water would be deadly hot and sterilized) is cor
rect.
Let's face it: The Earth is going to get...
07:11 We made a conversion error! The asteroid in this sentence should be 95,000 meters or 95 km. The conclusion (water would be deadly hot and sterilized) is cor
rect.
Let's face it: The Earth is going to get...
SciShow
The Sahara Used To Be Green.
The Sahara is rather famously a desert, but it wasn't always that way. And during the time of lush green forests, there were plenty of people who lived there, but they've been hard to study. However, new genetic analysis has given us...
SciShow
How to Make a Warning Last 10,000 Years
In the southeast corner of New Mexico, the United States is burying decades of nuclear waste. The storage site, and the earth above it, will remain lethal for millennia...perhaps as much as 300,000 years! How can we warn people that far...
SciShow
A Strange Thing Is Happening Beneath North America
The North American continent used to have deep roots extending far into the Earth's mantle. They melted. Here's how scientists think they disappeared.
SciShow
These Five Caves Changed What We Know About Ourselves
Humans love to decorate, and that's been true for a long time. Early humans have been painting on the walls for tens of thousand of years, and their work helped us understand a lot about their world and our own. From Lascaux Cave in...
SciShow
How Does Lava Make Perfect Hexagons?
The Giant's Causeway is a rock formation that is so otherworldly that it seems like it was made by supernatural beings. But these incredible hexagonal columns of rock aren't the result of giant masons. They formed through a quirk of...
SciShow
Why Don't We Have More Fossils?
When you see a bunch of fossils in a museum, you might not think about how unlikely it is that they got there. But there's a lot of lucky dice rolls that landed that mastodon in the museum, and researchers are really motivated to find...
SciShow
The Pandemic Made People Worse Drivers
We all picked up new habits during the COVID-19 pandemic. But not all of them stuck. Here's the data on whether we're better or worse drivers, exercisers, social media community members, neighbors, and self carers than during and before...
SciShow
6 Ways Aliens Could Find Us
Whether or not you think humans should be announcing our presence to the cosmos, we're doing it, anyway. Both intentionally, and not. And if aliens really do exist, there are several ways they could find us. Here are six of them.
SciShow
Scientists Don’t Know Where Gold Comes From
Astronomers have spent the past century (roughly) trying to figure out where all the elements on the Periodic Table come from. For example, the oldest hydrogen emerged when the universe was just a baby (Big Bang nucleosynthesis). And the...
SciShow
There Are Too Many Ways to Make a Mummy
While the word "mummy" may conjure up an image of King Tut (or a 1999 Brendan Fraser action/adventure movie), ancient Egyptians were far from the only culture that mummified their dead. Around the world, and across millennia, people...
SciShow
Menopause Starts Way Earlier Than You Think
If you've got a uterus, you've probably heard of menopause. But there's a lot that doesn't get talked about when it comes to this period, or lack thereof. This video is going to break down the real deal with menopause and give you...
SciShow
Grass Could Save The Arctic
In a remote corner of Siberia, a Russian scientist is trying to restore the ecosystem to the way it was during the last Ice Age. And while Pleistocene Park is definitely eccentric, it has implications for the future of the entire planet.
SciShow
What Will Humanity Leave Behind?
When humans are gone, nature will reclaim our cities and break down much of what we've built. But some of the things we've made will last much longer than others, and they're probably not the things you'd expect.
SciShow
These Birds Aren’t Real
If you’ve been around the internet long enough, you’ve probably heard of the “conspiracy” that birds aren’t real (It's not a real conspiracy theory; it was started as a joke). Well for decades, scientists have been using fake birds (even...
SciShow
You Don’t Need A Uterus to Get A Uterine Disease
Endometriosis is a disease that affects about one in ten women, and comes from tissue inside the uterus making its way out. But it turns out that's not the only way to get it, because there are people without uteruses who have it too....
SciShow
4 Fungi We've Finally Figured Out How To Farm
Mushroom foragers rejoice! Your lives just got a whole lot easier! Now, we can farm four mushrooms that used to only be found in the wild: morels, huitlacoche, chanterelles, and truffles. Here's why it took so long.
SciShow
5 Ways Space Is Actually Good for You
Space travel is infamously bad for your health. But it turns out that in some very specific cases, space travel may actually be beneficial. Like by strengthening your bones, or repairing your DNA.
SciShow
Cold Doesn’t Exist (And 4 Other Things Scientists Used to Think Were Real)
To explain how the world works, scientists occasionally have an idea that — upon further testing — turns out to be wrong. From rays that carry coldness instead of heat, to a neighboring star that causes regular mass extinctions on Earth,...
SciShow
Why Did These Ancient People Abandon Copper?
Most cultures who developed metalworking technology never let the skill go to waste. But in what's now Michigan, Native Americans started making metal tools well before anyone else did, and then stopped. And the reason why this happened...