SciShow
How Do Toys Glow in the Dark?
Did you play with glow in the dark toys as a kid? They’re super cool, but kind of mysterious. How do they glow after all? Hank explains the phenomenon in this quick question.
SciShow
Why These Bees Just Keep Staring at Flowers
You might have wondered why bumblebees stop for a moment to stare at the flower they were just interacted with. Are they cherishing all the good times they had together, or is this behavior serving a biological purpose?
SciShow
We Found Water on a Habitable Zone Exoplanet
Researchers found water in the atmosphere of an exoplanet about 110 light-years away, and there's another rock from interstellar space flying through our solar system!
TED Talks
TED: The fingerprints of life beyond Earth | Clara Sousa-Silva
Is there life on Venus? Quantum astrochemist Clara Sousa-Silva makes the case for a new way to seek and possibly discover habitable planets -- and shares her research into a poisonous, smelly molecule that might signal life beyond Earth.
Crash Course
Sula: Crash Course Literature
This week, John is talking about Toni Morrison's novel of friendship, betrayal, and loss, Sula. Sula tells the story of two African American girls, the town where they grew up, the tragic even that was central to their youth, and the...
SciShow
Why Do Leaves Change Color and Fall?
They’re pretty to look at, sure -- but the changing leaves you see in autumn are really a striking example of nature taking extreme measures to protect itself.
SciShow Kids
Happy Equinox! | Science for Kids
It's spring where Jessi and Squeaks live, and with the spring comes a really cool part of our planet's journey around the sun: the spring equinox!
SciShow
We Finally Know How Anesthesia Works
Even though doctors have been using general anesthesia for nearly 200 years, they haven’t really understood the details of how it temporarily shuts down your brain — until now.
SciShow
Why Do Cat Eyes Glow in the Dark?
Those eerie shining orbs staring at you from the bushes when you take the trash out at night could be any number of animals, but why do their eyes glow like that?
SciShow
Why Can't My Cat See a Treat in Front of Her Face?
Cats are known for having fantastic night vision, but why is it during the day my cats can't see the treat that I'm putting right in front of them?
SciShow
3 Ways to Explore the “Ignorosphere"
One of the hardest places to explore in space is actually pretty close, some call it the ignorosphere.
SciShow
Hanny's Voorwerp: The Mystery Blue Blob
In 2007, Hanny van Arkel noticed a blue blob next to a galaxy. Eight years later, scientists are still trying to figure out how it got there.
SciShow
How Many Galaxies Are There?
We've been trying to count the galaxies in the universe since the mid '90s, but our estimates change as our tools improve. So what does our current estimate really mean?
SciShow
Why Do We Have Blind Spots?
Your brain is lying to you about what you see-- find out why in this Quick Question!
Crash Course
The Earth
Phil starts the planet-by-planet tour of the solar system right here at home, Earth.
TED Talks
Paul Debevec: Animating a photo-real digital face
Computer graphics trailblazer Paul Debevec explains the scene-stealing technology behind Digital Emily, a digitally constructed human face so realistic it stands up to multiple takes.
SciShow
The Carbon Impact of the World’s Largest Mass Migration
The Carbon Impact of the World’s Largest Mass Migration
Be Smart
The Auroras
Space might seem like an empty place, but the area surrounding Earth is constantly being bombarded by waves of charged particles released by the Sun: The solar wind. Luckily, thanks to Earth's swirling, molten core (and the magnetic...
SciShow
Cavitation
Hank tells you about cavitation - the power of tiny bubbles to weaken metal, kill fish & maybe even cure cancer.
SciShow
Project Daedalus Our 1970s Plan for Interstellar Travel
Many ideas have come and gone, but Project Daedalus was a uniquely ambitious plan from the 1970s that never quite came to be.
SciShow
Cherenkov Radiation : Particles Faster Than the Speed of Light?
In something like water, particles like electrons can beat light in a race - and cause a blue glow to prove it.
SciShow
Four Creatures That Glow
Fireflies, crustaceans, jellyfish -- lots of living things glow, and they do it for all kinds of reasons, some of which we haven't even discovered yet.
Be Smart
What Color is the Universe?
When you stare up at the night sky, you might think that the universe is really black, but that's just because our eyes aren't sensitive enough to see the billions and billions of multicolored stars out there. Ever wonder why certain...
SciShow
What's Stopping the James Webb Space Telescope?
The James Webb Space Telescope is the most complex telescope we’ve ever sent into space. But, Webb is not, in fact, in space… yet.