SciShow
We Don’t Know What the Sun Is Made Of
Unlike Earth, our Sun is a giant ball of mostly hydrogen and helium. Astronomers managed to figure that one out roughly 100 years ago. But after all this time, they still can't come to an agreement on what "mostly" means, precisely.
SciShow
The World’s Biggest Aircraft Can Fly for a Week
It's a bird, it's a plane, it's a... peach emoji? The Airlander 10 is the world's biggest currently operational aircraft, and though it won't be setting any speed records, it may hold the key to greener, more sustainable commercial and...
SciShow
How Long Can You Live Underwater?
In 2023, Joseph Dituri set a world record for the longest continuous stay underwater. And that 100 day stay had effects on both his body and mind. Scientists have been studying the effects of living underwater since the 1960s, but how...
SciShow
Great Minds: Conny Aerts, the Starquake Professor
While doing some light reading of data from a telescope, Conny Aerts made a breakthrough that allowed her to lead the charge in the field of asteroseismology and win her the 2022 Kavli Prize in Astrophysics.
SciShow
The Biggest Star In The Universe Is Too Small
R136a1 is the most massive star that astronomers have ever discovered. It's so massive you might think the laws of physics wouldn't allow it. But it turns out that its current mass estimate is actually so low that it threatens our...
PBS
How Do We Know What Stars Are Made Of?
Pin-pricks in the celestial sphere, through which shines the light of heaven? Or gods and heroes looking down from their constellations? Or lights kindled above middle earth by Varda Elbereth and brightened with the dew of the trees of...
PBS
What Happens to a Helium Balloon in Freefall?
Hey Everyone! This week’s episode isn’t a full episode, but you should DEFINITELY STILL WATCH because we’re giving t-shirts away to a few of those who can correctly guess the answer to the challenge question. Watch this week’s episode to...
SciShow
The Hunt For Green Helium
Despite being a noble gas, helium has a carbon footprint. We haven't managed to find any helium reservoirs that don't also contain natural gas. But must they? Scientists and startups alike are on the hunt.
SciShow
What are Superfluids and Why Are They Important?
Can you imagine a cup of tea that doesn't obey the laws of physics? One that pours out of the bottom of your cup while crawling up the sides to the top? Join Hank Green for a fun new SciShow super episode all about superfluids!
SciShow
3 Surprising Things Matter Does Under Extreme Pressure
3 Surprising Things Matter Does Under Extreme Pressure
SciShow
Hardcore Metal Stars
SciShow Space describes a new phenomenon that might be out there: Stars made entirely out of metal. But it's not quite what it sounds like!
SciShow
10 Things We Didn't Know 100 Years Ago
In just the last century, we've made an astounding amount of scientific progress. And thanks to some of that progress, we can now share 10 of those discoveries with you in a video on the internet!
MinutePhysics
Legitimate Cold Fusion Exists | Muon-Catalyzed Fusion
This video is about the original cold fusion: μ muon-catalyzed cold fusion of deuterium, tritium, hydrogen, into helium-3 and helium 4. The problems with it are the half-life of muons and the sticking of muons to alpha particles. Also...
Crash Course
Exploring the Universe Crash Course Big History 2
In which John Green, Hank Green, and Emily Graslie teach you about what happened in the Universe after the big bang. They'll teach you about cosmic background radiation, how a bunch of hydrogen and helium turned into stars, formed...
Crash Course
The Sun & The Earth Crash Course Big History 3
In which John Green, Hank Green, and Emily Graslie teach you about our Sun, and the formation of the planets. We're going to focus on the formation and development of the Earth, because that's where people live. You'll learn about the...
SciShow
The Future of Our Sun and Earth
SciShow Space gives you a blow by blow account of what's going to happen to the sun -- and Earth.
SciShow
How Pluto’s Heart Makes Its Atmosphere Spin Backward - SciShow News
Pluto's heart is revealing itself to be a major influence on the dwarf planet’s landscape and atmosphere, and scientists used atom probe tomography (APT) for the first time on lunar soil to study it atom by atom!
SciShow
Asteroseismology: How to Explore Stars with Sound
Asteroseismology allows scientists to explore stars with sound. It can help them figure out what a star is burning and even help pin down the age of stars!
SciShow
There's another Milky way out there
As a species, we like to think everything about us is one of a kind, including the Milky Way Galaxy, but new evidence shows that yet again, we're not so unique.
SciShow
Football Disease, Moon Base Dreams, and the Deepest Vents Ever!
Hank breaks the news to you about your brain on football, the reality behind the latest moon-base plan, and an epic win -- and fail -- in the animal kingdom.
SciShow
What’s Hiding Inside The Crab Nebula?
The Crab Nebula is one of the most studied things in the sky, but it took glimpses through various wavelengths of the electromagnetic spectrum to get a full picture of what’s hiding inside!
SciShow
3 Stars That Shouldn't Exist
Based on what we think we know about the universe these stars really shouldn't exist, but they do!
SciShow
We Almost Didn't See the North Pole Space Hurricane | SciShow News
Astrophysicists have discovered an exoplanet that lost its atmosphere, but then, somehow, grew it back! Also, astronomers used satellite data to find a magnetic hurricane above the north pole that we almost missed!