Plants are amazing. Really! Photosynthesis is an incredible thing. But it also means that some plants can't live everywhere. They need to get the right amount of sunlight for the right amount of time. In this episode of Crash Course...

Supersonic jets like the Concorde face concerns over safety, high carbon output, and cost. They also make loud sonic booms so loud that only transoceanic flights are legal. Now one NASA program is trying to make a quiet supersonic plane...

Recently, the oldest quasar ever seen was discovered by the Gemini North telescope in Hawaii, the Magellan Telescopes at Las Campanas Observatory in Chile, as well as the Large Binocular Telescope in Arizona. In this first episode of...

The secretary-general of the United Nations denounced what he called "an excessive use of force" by Israel on the Jenin refugee camp in the occupied West Bank. Israel said the two-day operation targeted Palestinian militants. Elsewhere,...

The eyes are often the first thing we see when we look at someone. And when you look at them up close, everyone’s eye color is a kaleidoscope of shapes and hues. How does eye color work? The answer involves some very cool physics, and...

The future of wind energy is solarpunk. At least according to some manufacturers who want to put wind turbines on kites, blimps, or just generally up in the air where wind can generate green energy and fight climate change more efficiently.

In the 1800s, Wilhelm Kühne created an image of a window from the eyes of a rabbit. Was this technology applicable to humans? Hosted by: Michael Aranda

Some might call sand coarse, rough and irritating, but there’s no denying that it’s used everywhere: from glass to asphalt, sand is a key ingredient for all sorts of materials in construction and technology. But this heavy reliance on...

Mushroom hunters have long fanned out across the forest floor seeking what can be lucrative and delicious finds for teas, broths and medicinal remedies. But what does climate change mean for the fungi? From the Cronkite School of...

What we think of as 3D printing, says Joseph DeSimone, is really just 2D printing over and over ... slowly. Onstage at TED2015, he unveils a bold new technique -- inspired, yes, by Terminator 2 -- that's 25 to 100 times faster, and...

Some might call sand coarse, rough and irritating, but there’s no denying that it’s used everywhere: from glass to asphalt, sand is a key ingredient for all sorts of materials in construction and technology. But this heavy reliance on...

Try CuriosityStream todayef='http://curiositystream.com/crashcourse' target='_blank' rel='nofollow'>today and use the promo code "crashcourse" to get the first two months free! Is Citizen Kane the BEST MOVIE EVER MADE? Is that even...

Pulsars are more than just cool blinking lights shining across the universe. The discovery of the first binary pulsar paved the way for gravitational wave astronomy astronomy today.

Have you ever seen an airplane high in the sky leave a long trail behind it? That's called a contrail! It's kind of like a cloud, or your breath on a cold day. Jessi and Squeaks explain the special circumstances that make contrails happen!

An animated interpretation of Andrea Gibson's poem "The Nutritionist"

Infinitesimally small quantum dots can turn a window into a see-through solar panel!

In which Mike Rugnetta teaches you about the hero of The Congo, Mwindo! Mike will tell you the stories of Mwindo's birth, his many deaths, and his evolution from a braggy superhuman baby to a wise, superhuman leader of his people. Along...

Early diagnosis of autism spectrum disorder can improve the lives of everyone affected, but the complex network of causes make it incredibly difficult to predict. At TEDxPeachtree, Ami Klin describes a new early detection method that...

The study of clouds has always been a daydreamer’s science, aptly founded by a thoughtful young man whose favorite activity was staring out of the window at the sky. Richard Hamblyn tells the history of Luke Howard, the man who...

No astronauts were harmed in the making of this video.

Does science ruin the magic of life? In this grumpy but charming monologue, Robin Ince makes the argument against. The more we learn about the astonishing behavior of the universe -- the more we stand in awe.

Metaphoric compounds, like the combination of the words wind and eye to represent a window, populated Norse and Old English. Jessica Oreck and Rachael Teel describe how this love of metaphor created the word window.

Photographer Rick Smolan tells the unforgettable story of a young Amerasian girl, a fateful photograph, and an adoption saga with a twist.

Combining dry wit with artistic depth, Billy Collins shares a project in which several of his poems were turned into delightful animated films in a collaboration with Sundance Channel. Five of them are included in this wonderfully...