Be Smart
The Cosmic Afterglow
The lingerling radiation from the ancient universe still surrounds us to this day.
MinuteEarth
Our Definition For “Moon” Is Broken (Collab. w/ MinutePhysics)
It’s becoming harder and harder to categorize moons as moons. ___________________________________________ To learn more, start your googling with these keywords: Moon: a natural satellite of a satellite of a star. Satellite: A celestial...
SciShow
Life on a Donut Planet
We're used to talking about planets as spherical objects, but a donut-shaped planet is theoretically possible. What would life be like on one of these?
SciShow Kids
What's a Meteor Shower?
Have you ever looked up at night and seen a streak of light flash across the sky? Some people call that a "shooting star," but it's not actually a star at all! Join Jessi and Squeaks to learn what shooting stars really are and how they...
SciShow
The Nicest Neighborhoods in the Universe
What does it really take for a planet to be habitable? It turns out, certain parts of a star system, a galaxy, and even the universe as we know it, are more habitable than others. Get to know them as Hank takes you on a tour of some of...
Bozeman Science
LS1B - Growth and Development
Paul Andersen answers the following question: How do organisms grow and develop?
SciShow
How Going to Space Changes the Way You Think Forever
A trip into space produces physiological effects in human beings, but it can also change a person in a profound, psychological way.
SciShow
There Are Planet-Sized 'Tornadoes' on the Sun!
Solar tornadoes are not tornadoes, and scientists are studying a black hole with a telescope bigger than the earth!
MinutePhysics
Why Raindrops Are Mathematically Impossible
Why Raindrops Are Mathematically Impossible
SciShow
These 'Fossilized Brains' Might Not Be Brains At All
A new study calls the claims of fossilized brains into question, and another finds ichthyosaurs might have been bigger than our current champions, the blue whales.
SciShow
Animals Getting Bigger, and How Cannabis Causes Hunger
SciShow News delves into the history of marine animals and finds that they’re getting bigger, and unlocks the secret of how cannabis creates one of its most medically useful effects.
PBS
How the T-Rex Lost Its Arms
Tyrannosaurus rex was big, Tyrannosaurus rex was vicious, and Tyrannosaurus rex had tiny arms. The story of how T-Rex lost its arms is, itself, pretty simple. But the story of why it kept those little limbs, and how it used them? Well,...
TED Talks
TED: Get ready for hybrid thinking | Ray Kurzweil
Two hundred million years ago, our mammal ancestors developed a new brain feature: the neocortex. This stamp-sized piece of tissue (wrapped around a brain the size of a walnut) is the key to what humanity has become. Now, futurist Ray...
SciShow
Why Fish Care About Forest Fires
We don't think of rivers and lakes as something that are greatly affected by fires, but it turns out these disasters can have a big effect on the acquatic wildlife that calls these places home.
SciShow
Why You Don't Really Know the Size of a Walrus
When you imagine a walrus, you probably picture it way smaller than it actually is. It’s because our brains meddle with our senses in more ways than you might expect.
SciShow
How Losing Your Job Changes You
Unexpectedly losing a job is hard, but it can also change you in the long term, setting off a cycle that may be hard to break out of, and leaving lasting effects on the way you see and interact with the world.
TED Talks
TED: How we found hundreds of potential Earth-like planets | Dimitar Sasselov
(NOTE: This talk was given in 2010, and this field of science has developed quickly since then. Read "Criticisms & updates" below for more details.) Astronomer Dimitar Sasselov and his colleagues search for Earth-like planets that may,...
TED Talks
TED: The hunt for a supermassive black hole | Andrea Ghez
With new data from the Keck telescopes, Andrea Ghez shows how state-of-the-art adaptive optics are helping astronomers understand our universe's most mysterious objects: black holes. She shares evidence that a supermassive black hole may...
SciShow
Why Can’t Scientists Predict the Kilauea Eruption?
Hawaii's Kilauea volcano suddenly erupted last week. It's happened before, so why are eruptions so hard for scientists to predict?
SciShow Kids
Do You Want to Build a Snowman Engineering for Kids?
Even though it may be cold outside, we can always think like engineers! Learn how to build a snowman -or a snowrat- with Jessi and Squeaks!
Crash Course
The Mighty Power of Nanomaterials: Crash Course Engineering #23
Just how small are nanomaterials? And what can we do with stuff that small? Today we’ll discuss some special properties of nanomaterials, how some can change at different sizes, and the difference between engineered nanomaterials and...
Be Smart
Orchid Mantis: Looks That Kill
Many creatures wear disguises in order to keep safe from predators, but there are some that dress to kill. Orchid mantises are one of nature's most awesome examples of aggressive mimicry. These killer insects are almost indistinguishable...
TED Talks
TED: Art made of the air we breathe | emily Parsons-Lord
emily Parsons-Lord re-creates air from distinct moments in earth's history -- from the clean, fresh-tasting air of the Carboniferous period to the soda-water air of the Great Dying to the heavy, toxic air of the future we're creating. By...
Crash Course Kids
Why No Polar Pineapples
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...