Why are trees and other plants green? Seems like a simple question. But the answer is full of surprises. Using a special camera that can pick up light just beyond the visible range, into the near-infrared, you’ll get to see trees like...

The Sun is green, actually. We'll go into why the blackbody effect means the Sun emits more green visible light than any other color, and why evolution and color perception mean it's ok to see it as yellow, anyway.

Watch these amazing rewilding videos from our friends at Planet Wild, in which they’re saving Europe’s cutest bird from extinction or resurrecting a dying forest.

If you’ve managed to break your boxy old computer monitor by sticking a magnet on it, you have a lot to learn about the 20th century technology of cathode ray tubes.

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.

Some people have more taste buds than the rest of us. They’re called supertasters, and they can taste things others can’t. Special thanks to our tasters: Matthew Gaydos Lindsey Doe Julia Maes Hank Green

If you're lucky enough to find a glowing rock, it likely doesn't mean you're the chosen one. In fact, it could have to do with one of these five phenomena! Learn about the quantum mechanics of glowing rocks in this new SciShow Episode...

What exactly is hypnosis? Some people think it's just a fun trick for magic shows, but can it actually make you do things against your will? Learn all this and more with Michael Aranda in a new episode of SciShow!

You've seen those viral videos of colorblind people putting on special glasses and reacting to colors they've never seen before! Today, we'll explore how colorblindness works and what those glasses try to do to fix it! Hosted by: Hank Green

Lots of life on Earth can fluoresce, creating a beautiful neon world of camouflage, communication, and adaptation that is hidden from the human eye.

Taking photos used to require technical knowledge and time in a lab, but now we have electronic devices in our pockets that do all of the work for us. How do these miracle devices do it? Hosted by: Olivia Gordon

You might have heard that exposure to unnatural lights from digital devices can hurt your eyes. But is that true? Hosted by: Stefan Chin

SciShow explains the genetics -- and physics -- behind why blue eyes are blue, and what the future may be for the trait. Spoiler alert: Blue eyes aren’t really blue! SciShow explains!

This week, scientists have managed to make tear gland organoids that cry, and have also found a bunch of new genes involved in eye color!

Long before we had cameras scientists still needed visual documentation—enter the science illustrator!

You know colors, you probably have a favorite! But there's so much more than what meets the eye—did you know that language can affect how we see color? Learn all about it with Stefan Chin in this colorful episode of SciShow!

Indigo may be a very vague and unnecessary color, but it has an interesting history that involves some plants, turmoil, and Isaac Newton's interest in the number seven. Hosted by: Hank Green

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? Hosted by: Michael Aranda

Have you ever been forced to limit your identity to a single box on an application, survey or census questionnaire? For many, it is a futile and overall outdated exercise, especially for those with multiracial and multi-ethnic...

Can AI help us see beyond our human capabilities? Through a kaleidoscopic blend of technology, nature and art, neural artist Sofia Crespo brings to life animals that push the boundaries of creativity and imagination. Her artistic...

Eigenvalues and eigenvectors are one of the most important ideas in linear algebra, but what on earth are they?

What is integration? Why is it computed as the opposite of differentiation? What is the fundamental theorem of calculus?

The formula for the cross product can feel like a mystery, or some kind of crazy coincidence. But it isn't. There is a fundamental connection between the cross product and determinants.

The general uncertainty principle, about the concentration of a wave vs the concentration of its fourier transform, applied to two non-quantum examples before showing what it means for the Heisenberg uncertainty principle.