PBS
Darwin's Unexpected Final Obsession
New ReviewAfter having solved the small matter of evolution by natural selection - becoming one of the most famous scientists in the world in the process - Charles Darwin turned his focus to a different personal obsession…
Be Smart
Maybe We've Already Made First Contact…
New ReviewThere are hundreds of billions of planets in our galaxy. Scientists now think hundreds of millions of them have conditions where life could arise. What do scientists think are the best ways of reaching out to them? And why do some...
SciShow
How Do Eggs Know When to Hatch?
Are you an insect fetus who'd rather not get eaten by your siblings? How about a baby frog who'd rather not drown before getting to leave your egg? Well, you had better figure out a way to hatch when you need to. Hosted by: Hank Green
SciShow
Why the Appalachians Contain Some of the Oldest Fossils on Earth
The Appalachian Mountains are some of the oldest geological features on earth. And they also hold fossils that tell us about some of the very earliest life forms that we'll ever manage to see in the fossil record. So how did these...
Crash Course
The Scientific Method: Crash Course Biology #2
Science offers a way of discovering and understanding the world around us, driven by questions and tested with evidence. And it’s a twisty-turny team effort— you won’t find many lone geniuses out there, or straight lines from hypothesis...
Crash Course
Introduction to Biology: Crash Course Biology #1
Biology is the study of life—a four-letter word that connects you to 4 billion years worth of family tree. The word “life” can be tricky to define, but a shared set of characteristics helps biologists identify living things. In this...
SciShow
The World's Biggest Geode Is A Literal Cave
If you were really into gift shops as a kid, you probably loved to look at all the shiny geodes. But those little geodes are nothing compared to the mother of all geodes, found is in Put In Bay, Ohio. So let's talk about how this geode...
SciShow
That Time NASA Put Astronauts in the World's Worst Carnival Ride
In the early 1960s, NASA rolled up to a US Navy facility in Pennsylvania with one goal in mind: stick its newly-minted astronauts into one of the most extreme centrifuges that has ever been built, and whirl them around really fast to...
SciShow
What Time Is It on the Moon?
If all goes well, we'll be sending astronauts back to the Moon in just a couple of years. And scientists have a lot to figure out before then, including the answer to a seemingly simple question: What time is it up there? Hosted by:...
SciShow
Medicine Cabinets Shouldn't Exist
The conditions in many medicine cabinets turn out to be detrimental for medicines—some worse than others. Hosted by: Hank Green (he/him)
SciShow
The Most Important Explosion in History
Not long after the supernova of 1604, the telescope was invented. But astronomers would have to wait nearly FOUR CENTURIES to witness the next supernova that was visible to the naked eye. It was 1987, and a blue supergiant in the Large...
SciShow
A Better Treatment for Overdose Is Coming
Naloxone, better known as Narcan, is today's gold standard to treat opioid overdose. But sometimes it comes up short against more potent opioids like fentanyl. So future treatments might take advantage of opioid receptor...
SciShow
Earth's Largest Crater Is Hiding in Plain Sight
An asteroid nearly twice the size of the one that killed the dinosaurs left a record-setting crater in South Africa. If you look closely, you can still see it today, 2 billion years later. Hosted by: Jaida Elcock (She/her)
SciShow
Your DnD Party is Too Big
Whether you’re trying to play Dungeons and Dragons or one of the many other TTRPGs out there, there’s a good chance your last campaign failed because there were simply too many adventurers in the party. And by "too many" I mean, like,...
SciShow
The Clock that Reinvented Time
In 1327, a monk named Richard of Wallingford drafted plans for an engineering marvel: one of the very first truly mechanical clocks in the world, which helped to usher in a complete reinvention of humanity's perception of time itself....
SciShow
The People Who Fly Into Hurricanes (on Purpose)
Hurricanes are scary and the idea is usually to move away from them as much as possible. Then there are the intrepid scientist-pilots at NOAA who fly right into them. On purpose. And they do it to save lives. Hosted by: Hank Green...
SciShow
Could Deep-Sea Mining Solve the Energy Crisis?
Polymetallic nodules, found at the bottom of the Pacific Ocean's Clarion-Clipperton Zone, have enough metals to secure the future of green energy. But is it worth the cost? Hosted by: Savannah Geary (they/them)
SciShow
We Could Put The World's Rarest Tree In Your Back Yard
There's a tree species that used to be all over the world. And now, they can only be found in a secret valley in the mountains in Australia. This is the story of the rise and fall of the Wollemi Pine, including how some new tech might...
SciShow
How Science Says You Should Pack
Perfectly packing your suitcase for a trip may require more physics and math than you think. Here's when to crumple your clothes in the bag and shove it down, iron and fold everything, or roll it up using CleanTok hacks. Hosted by: Hank...
SciShow
NFL Teams Are Trying to Win More Games with Lights
The idea of improving athletic performance with a certain kind of lighting sounds absurd, but some NFL and MLB teams are trying it. The question is: does it work? Hosted by: Savannah Geary (they/them)
SciShow
Could a Time Traveler Survive History’s Worst Diseases?
If you were a time traveler, would you survive the Black Death? Smallpox? Tuberculosis? What about the unknown diseases of the future? And is it safer to travel back or forward in time? We attempt to answer these questions. Hosted by:...
SciShow
AI Doesn't Need To Be Self-Aware To Be Dangerous
Artificial Intelligence always takes over humanity in the movies when it gains consciousness. But even without getting into sentience, it's capable of influencing our lives in a lot of ways already. Hosted by: Stefan Chin (he/him)
SciShow
The REAL Science of Groundhogs
Groundhogs are famous in North America for "predicting" when spring will come (and also that Bill Murray movie). But while they might make for terrible meteorologists, they actually play a valuable role in several other scientific...
SciShow
What Made These Rainbow Mountains?
China's Zhangye Danxia National Geopark is home to strikingly beautiful rainbow mountains -- yes, what you're seeing is real! But the secret to this amazing sight might be something incredibly humble: dirt. Hosted by: Stefan Chin (he/him)