SciShow News reports some promising new findings about the worldwide fight against HIV, including insights about how we can make the most of one of our newest weapons against HIV: circumcision.

Updated Mitosis Video. The Amoeba Sisters walk you through the reason for mitosis with mnemonics for prophase, metaphase, anaphase, and telophase. Table of Contents: 00:00 Intro 0:44 Why is Mitosis Important? 2:00 Why Don't You Want...

Houseplants can be great for your mental health, but eating some of them can be far worse for your bodily health than you might think.

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To the average tongue, the color "red" doesn't have a flavor or a smell. But color can affect how we perceive the world in so many ways - including how things taste and smell!

Historians love to debate each other. So some of them pointed out that the first half of this revolution looks a lot different from the second. Let's chat about industry, cars, and Henry Ford.

True Pines (conifer trees in the genus Pinus) are often confused with other members of the Pinaceae family like Picea (Spruces), Abies (Firs), Pseudotsuga (Douglas-firs) or Larix (Larches). So is very likely that your Christmas tree is...

Soil doesn't seem like it's "alive", yet it functions like a living thing in lots of key ways.

Squeaks can't sleep because the sun is too bright, and Sam the Bat stops by to talk about what makes the sun so special



DCI: ESS1.A: Patterns of the motion of the sun, moon, an
d stars in
the sky can be observed,...

TED Fellow Tom Osborn wants more young people to have access to the mental health support they need. With the Shamiri Institute, he and his team are training 18- to 22-year-olds to deliver evidence-based mental health care to their peers...

We hear about calories all the time: How many calories are in this cookie? How many are burned by doing 100 jumping jacks, or long-distance running, or fidgeting? But what is a calorie, really? And how many of them do we actually need?...

In which John Green teaches you how Russia evolved from a loose amalgamation of medieval principalities known as the Kievan Rus into the thriving democracy we know today. As you can imagine, there were a few bumps along the road. It...

The idea that humans react to disasters by losing control and acting selfishly is all too prevalent, especially in movies and television. But recent studies on altruism may provide evidence that this isn’t always the case, and this...

David Hanson's robot faces look and act like yours: They recognize and respond to emotion, and make expressions of their own. Here, an "emotional" live demo of the Einstein robot offers a peek at a future where robots truly mimic humans.

Hank gets real with us in a discussion of evolution - it's a thing, not a debate. Gene distribution changes over time, across successive generations, to give rise to diversity at every level of biological organization.

Dive into the world of aquaculture and see how restorative ocean farming could play a vital role in helping our coastal communities, our oceans and our climate. -- For billions of people, seafood provides a significant source of...

Ever wonder why the earth has different seasons? Michael Aranda will explain in this episode of SciShow Quick Questions.

When faced with a bump in the road, sometimes we forget we have a choice: overcome the obstacle or let it overcome you. Steven Claunch, who was born without fingers on his right hand and with one leg shorter than the other and has...

Here's a paradox you don't hear much about: despite a century of creating machines to do our work for us, the proportion of adults in the uS with a job has consistently gone up for the past 125 years. Why hasn't human labor become...

We know whales as graceful giants bound to the sea. But what if we told you there was actually a time when whales could walk.

Plot often trumps reality when portraying space in movies and, as a result, many films are full of inaccuracies. So how much fiction is actually written into some of our favorite movies? Movies mentioned (and potentially spoiled) in this...

Hank teaches us why water is one of the most fascinating and important substances in the universe.

In our final episode of Crash Course Geography we're going to take a look towards the future, and to do that we'll need to revisit our fundamental geography tools: space, place, and human-environment interactions! We'll talk about the...

Transhumanism is a scientific philosophy that says technology will solve all our human biological constraints and that immortality is right around the corner (well not RIGHT around the corner, but WAYYY closer). They envision a world of...

Join Jessi, Bill and Webb to learn all about the place we call home!