Colonialism remains an inescapable blight on the present, lingering in the toxic, internalized mythologies and stereotypes that have outlived the regimes that created them, says historian Farish Ahmad-Noor. Examining why these prejudices...

In 2011, Teresa Njoroge was convicted of a financial crime she didn't commit -- the result of a long string of false accusations, increasing bribe attempts and the corrupt justice system in her home in Kenya. Once incarcerated, she...

The enigmatic equation e^{pi i} = -1 is usually explained using Taylor's formula during a calculus class. This video offers a different perspective, which involves thinking about numbers as actions, and about e^x as something which turns...

Diabetes has a history dating back to Ancient Greece. Our treatment of it, however, is more recent and was originally made possible with the help of man's best friend. Due to physiological traits shared with humans, dogs have saved...

What would you do if you found out that cancer could be lurking in your genes? More people are getting news like that these days as more kinds of cancer are being linked to specific genes and genetic tests let doctors screen your...

In which John Green teaches you about Nationalism. Nationalism was everywhere in the 19th century, as people all over the world carved new nation-states out of old empires. Nationalist leaders changed the way people thought of themselves...

So political campaigns are a pretty big deal in the United States. For instance the 2012 presidential election clocked in at the most expensive ever - at around $6 billion dollars! Needless to say, money plays a very big role in...

Earth has its share of monster storms, but even our most powerful hurricanes are a breeze compared to the great, planet-sized tempests of the gas giants.

How does a nation reconcile when its identity is at odds with its policies? Ali Noorani traces the arc of the US immigration debate to show a safer and more compassionate way forward, highlighting why centering human dignity creates...

Oxygen is crucial for life as we know it, but before it could build up in our atmosphere, earth had to slow down.

Vaccines teach your immune system to recognize pathogens, but sometimes your body needs a bit of a reminder.

Today we are moving on from the existence of God to look at the philosophical debate surrounding the traditional divine attributes - omnipotence, omniscience, omnitemporality, and omnibenevolence. We are exploring the puzzles that these...

The earth is our home, and while we like to think we know a good deal about it, there are still some mysteries that scientists are looking to unravel.

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A lot of our videos include the disclaimer "Mice aren't people." But why do we keep saying this, and if rodent studies aren't effective, why do we keep using them?

A puzzle involving colliding blocks where the number pi, vey unexpectedly, shows up.

Biochemist Joe DeRisi talks about amazing new ways to diagnose viruses (and treat the illnesses they cause) using DNA. His work may help us understand malaria, SARS, avian flu -- and the 60 percent of everyday viral infections that go...

The equations of quantum field theory allow us to calculate the behaviour of subatomic particles by expressing them as vibrations in quantum fields. But even the most elegant and complete formulations of quantum physics - like the Dirac...

Unlike most living things, there are species of bacteria that can harness electrons directly and even shuttle them around from place to place like living wires.

While children are only a small minority of those who test positive for COVID-19, we’re starting to see evidence of a rare, but serious, complication in children that resembles a condition known as Kawasaki disease. Here’s what doctors...

In this episode, Michael Aranda will help you empathize with your cat as we explore what happens when you swallow hair.

The SciShow Science News Bureau brings us some GOOD news this week - Hank tells us about a newly developed vaccine for dengue fever, a newly discovered monkey species in the Democratic Republic of the Congo, and some happy pigs drinking...

Brown cats are something of a rarity, but you may have something pretty close.

Astronomers have theorized about an invisible star made up of theoretic particles in the past, but did we recently detect the gravitational waves of two of them colliding? Plus, extraterrestrial rocks from a decades-old mission keep...

We used to believe that our ancestors had clear roles: Men hunt, women gather. But new evidence suggests that some of the earliest big game hunters were women.