Have you ever forgotten why you walked into a room? Turns out it's just your brain doing its job.

SciShow Space takes you to the moon! Learn about the competing theories about how Earth's closest neighbor formed.

The Earth and Moon are like identical twins, made up of the exact same materials -- which is really strange, since no other celestial bodies we know of share this kind of chemical relationship. What's responsible for this special...

What's it like to be pals with a genius? Physicist Leonard Susskind spins a few stories about his friendship with the legendary Richard Feynman, discussing his unconventional approach to problems both serious and ... less so.

What do rap shows, barbershop banter and Sunday services have in common? As Christopher Emdin says, they all hold the secret magic to enthrall and teach at the same time — and it's a skill we often don't teach to educators. A longtime...

Why is there something rather than nothing? Why does so much interesting stuff exist in the universe? Particle physicist Harry Cliff works on the Large Hadron Collider at CERN, and he has some potentially bad news for people who seek...

Thanks to the James Webb Space Telescope (JWST) and Space Telescope Science Institute for supporting this video.



This video is about the cycloid curves on Jupiter's moon Europa - they're ridges or valleys...

Is there any hope for those of us plagued by headphone tangles?

Our exploration of ethical theories continues with another theistic answer to the grounding problem: natural law theory. Thomas Aquinas’s version of this theory says that we all seek out what’s known as the basic goods and argued that...

Why are eggs egg-shaped? There’s a logic to it, but it’s ovoid!

It turns out if you’d like to take a deeper look into the universe, the universe itself might actually help you do that!

SciShow's Quick Questions explains why bright light can make some people sneeze! Really!

Dreaming is very weird, but you might be able to learn something from your dreams.

Science isn't always a visual medium, but I think it's most important moments have often been captured in photos and illustrations. I picked out some of my favorite science images from history.

Today, cosmic rays are used to understand things like supernovas, but in the early 1900s, they helped us discover brand-new subatomic particles long before the first accelerators.

Why is gender even a thing? To answer that, we’re going back to our three sociological paradigms and how each school of thought approaches gender theory. We’ll look at the structural functionalist view that gender is a way of organizing...

So, what exactly is a scientific revolution? And are they more than just moments in time Historians use to mark the beginning and ending of things through time? In this episode we'll look into some ideas and people named Nick and how...

Evolution vs Natural Selection

What’s irrational and never ends? Pi! Hank explains how we need pi to explain some of the most basic but most important principles of the universe, in honor of Pi Day.

Neuroscience is abound with debates over the nature of consciousness. Which makes sense, because it’s a very abstract idea. We know we are conscious, but theories of why, how and what brain activity causes it are still simply that:...

Decades ago, few pediatricians had heard of autism. In 1975, 1 in 5,000 kids was estimated to have it. Today, 1 in 68 is on the autism spectrum. What caused this steep rise? Steve Silberman points to “a perfect storm of autism awareness”...

Hank discusses some of the taboos which have plagued scientific inquiry in the past and a few that still exist today.

Mercury’s path through our solar system is, well, a little eccentric, and some of its movements were a mystery astronomers couldn’t explain for a long time. Then, in the early 20th century, Einstein reran the numbers and proved a whole...

Do you remember the exciting rumor about NASA’s EMdrive? Well, now it’s official: NASA has created their own EM drive! Meanwhile, SpaceX has a plan which will make the internet more accessible.