Hi, what do you want to do?
SciShow
Why Your Strawberry Milk May Look Different Soon
Popular food dyes Red 3 and titanium dioxide are in everything from toothpaste to your strawberry milk. But multiple U.S. states and the EU are trying to ban them. Are they safe?<br/>
SciShow
Does Tylenol Actually Do Anything?
The pain reliever known as acetaminophen or paracetamol, marketed under brand names like Tylenol, Calpol or Panadol, has an excellent reputation. But the quality of evidence that it actually works is shockingly poor. So, do doctors and...
SciShow
This Planet is Only Half Covered in Lava
There are a lot of weird exoplanets out there, like 55 Cancri e (aka Janssen), which is probably half covered in lava. But the half that's covered in lava might not be quite the half you're thinking of.<br/>
SciShow
The Ocean’s Turning Green (That’s Bad)
Computer models of climate change have long predicted that the ocean would turn green as a result of warming. But the change can't be seen by the human eye, so scientists weren't sure how they'd measure this effect... until it turned...
SciShow
The Particle So Extreme Scientists Called it OMG
In 1991, a subatomic particle smashed into Earth's atmosphere traveling faster than anything humans can replicate. It's the most energetic particle detected to date, and maybe even the fastest (except light itself). Astronomers call it...
SciShow
Why Hairworms Don’t Have Hair
Hairworms, sometimes called horsehair or Gordian worms, are mind-controlling parasites with a twist. A genetic study found these nematomorph worms are missing 30% of their genome, and we don't understand how they live without genes for...
SciShow
The Hostile World Where Animal Life Began
For decades, researchers thought they had a solid idea about the earliest booms in animal life. But new research might have turned off the gas on all these ideas, flipping our understanding of the Avalon explosion and the Cambrian...
SciShow
The Spiders That Turn Stars into Planets
Neutron stars, are some of the most extreme phenomenon in the universe. It's doubly so for a subset known as pulsars. Some are spinning so fast, and are so massive, that astronomers aren't entirely sure how they got to be that way. One...
SciShow
The Woman Who Saved the World
On her way to winning the 2023 Nobel Prize for her pioneering work on mRNA vaccines, Katalin Karikó lived a life made for the big screen. <br/>
SciShow
Blue Is the New Green (For Hydrogen)
We all want green energy to stop climate change, and one option is hydrogen. But achieving green hydrogen is tough, so some want to consider so-called blue hydrogen instead. Support for this video provided by Gates Ventures.<br/>
SciShow
You Went Through Puberty as a Baby
We all remember the woes and trials of our adolescence. But what you may not have realized is that your middle-school bout with surging hormone's wasn't the first time you went through a sort of puberty. From surging hormones to hair...
SciShow
The Island Made Of Gemstones
Zabargad Island in the Red Sea is so crusted with peridot that it's fair to say the place is literally made of it. <br/>
SciShow
Do Animals (That Aren’t Us) Procrastinate?
Are there any non-human animals that take a task they don't want to do and think to themselves "Eh, I'll do it tomorrow"? Even if they know the task will be harder and/or more unpleasant by putting it off? One of our Patreon subscribers...
SciShow
We Finally Landed on the Bottom of the Moon!
Humans have been hurling spacecraft at the Moon for over 60 years. But even with all that practice, it's still quite the challenge to successfully land something on the surface. Case in point: in August 2023, two missions attempted to...
PBS
Breaking The Heisenberg Uncertainty Principle
Quantum mechanics forbids us from measuring the universe beyond a certain level of precision. But that doesn’t stop us from trying. And in some cases succeeding, by squeezing the Heisenberg uncertainty principle to its breaking point.
PBS
Electrons DO NOT Spin
Quantum mechanics has a lot of weird stuff - but there’s thing that everyone agrees that no one understands. I’m talking about quantum spin. Let’s find out how chasing this elusive little behavior of the electron led us to some of the...
PBS
What If (Tiny) Black Holes Are Everywhere?
It’s fair to say that black holes may be the scariest objects in the universe. Happily for us, the nearest is probably many light-years away. Unless of course, Planck relics are a thing - in which case they might be literally everywhere.
PBS
Cosmic Microwave Background Challenge | Space Time | PBS Digital Studios
If a photon leaves the train station shortly after the Big Bang ...
PBS
How To Become an Astrophysicist + Challenge Question!
Do you want to major in Astrophysics? Are you thinking about becoming (or ever just wondered how one becomes) an Astrophysicists? Do you want to know Matt O’Dowd’s origin story? Then buckle up and enjoy the ride and try your astrophysics...
PBS
What’s Wrong With the Big Bang Theory? | Space Time | PBS Digital Studios
Now that we have a primer on the aspects of the Big Bang Theory that we know definitely happened, let’s look further into what we don’t yet know, and how the theory could progress in the future. Since there is a discrepancy between...
PBS
Will the Universe Expand Forever?
Throughout history, there has been much speculation about what the fate of the universe would be. Many theorized that the universe would eventually succumb to the pull of gravity, and reverse its expansion in what was being called ‘The...
PBS
Pulsar Starquakes Make Fast Radio Bursts? + Challenge Winners! | Space Time | PBS Digital Studios
Fast Radio Bursts were puzzling physicist for quite some time. They were thought to be the result of large cataclysmic events such as supernovae, but this theory was proven wrong when it was discovered that they could repeat themselves....
PBS
Planet X Discovered?? + Challenge Winners!
Some funky orbits near the Kuiper Belt are hinting towards a brand new planet, the elusive ‘Planet X.’ Our friends Mike Brown and Konstantin Batygin of Caltech are working hard to finally spot the potential gas giant through powerful...
PBS
Where Did Water Come From?
Mercury, Venus, and Mars are all super low on water – so where did ours come from and why do we have so much of it? We think our water came from a few unlikely sources: meteorites, space dust, and even the sun.