We tend to consider romantic partners and family ties to be our most important relationships, but deep friendships can be just as meaningful. In a perspective-shifting talk, author Rhaina Cohen introduces us to the people unsettling...

This is a snippet of a larger conversation taking place on Crash Course Pods: The Universe. Over 11 episodes, John Green and Katie Mack walk through the entire history of the universe…even the parts that aren’t written yet. <b<br/>r/>

Hank hits you with a ton of news this time - Amazon CEO Jeff Bezos has plans to retrieve Saturn V rocket engines from the bottom of the Atlantic; new research on the impacts from the Deep Water Horizon oil spill to life in the Gulf of...

An interview with former President Gerald Ford on the prospect of the United States going to war in the Persian Gulf, following Iraq's invasion of Kuwait.

"Former vice president and climate change activist Al Gore warns that climate change could be an "existential threat" and calls President Trump's response an "outlier reaction." In a wide-ranging interview, Judy Woodruff speaks with Gore...

(NOTE: Statements in this talk have been challenged by scientists working in this field. Read "Criticisms & updates" below for more details.) Elaine Morgan was a tenacious proponent of a theory that is not widely accepted. The aquatic...

A little over a decade ago, a neuroscientist found "significant activation" in the neural tissue of a dead fish. While it didn't prove the existence of zombie fish, it did point out a huge statistical problem.

Plastic bags are essentially indestructible, yet they're used and thrown away with reckless abandon. Most end up in the ocean, where they pollute the water and harm marine life; the rest are burned in garbage piles, where they release...

We've been to the moon, we've mapped the continents, we've even been to the deepest point in the ocean -- twice. What's left for the next generation to explore? Biologist and explorer Nathan Wolfe suggests this answer: Almost everything....

Although polar bears and grizzly bears aren't all that similar and are definitely separate species, they can interbreed and create fertile offspring in the wild. Hank brings us the story of these misfit bears, which he likes to call...

Be blown away with this episode of SciShow News as Hank talks about using the power of one of earths most powerful energy sources: Volcanoes!

Psychologist Barry Schwartz takes aim at a central tenet of western societies: freedom of choice. In Schwartz's estimation, choice has made us not freer but more paralyzed, not happier but more dissatisfied.

* Viewer discretion advised. This video includes discussion of mature topics and may be inappropriate for some audiences.

As a fire chief and first responder, Jan Rader has spent her career saving lives. But when the opioid...

Some people think that being a fighter pilot and a parent means that you will have a household full of daughters - but does the data back that up?

Escape was one of the many ways that enslaved people resisted their captivity in the system of American slavery. The Underground Railroad was not literally a railroad. It was a network of people, routes, and safe houses that helped...

Today we're going to talk about degrees of freedom - which are the number of independent pieces of information that make up our models. More degrees of freedom typically mean more concrete results. But something that is statistically...

We live in one of a hundred billion of galaxies, each with hundreds of billions of stars. And now, thanks to modern astronomy, we know that the Milky Way is home to perhaps a hundred billion planets! In the past two decades, these...

Do you think a red minivan would be more expensive than a beige one? Now what if the car was something sportier like a corvette? Last week we introduced the ANOVA model which allows us to compare measurements of more than two groups, and...

Our planet has a carbon problem -- if we don't start removing carbon dioxide from the atmosphere, we'll grow hotter, faster. Chemical engineer Jennifer Wilcox previews some amazing technology to scrub carbon from the air, using chemical...

A unit is the frequently arbitrary designation we have given to something to convey a definite magnitude of a physical quantity and every quantity can be expressed in terms of the seven base units that are contained in the...

Today we're going to wrap up our discussion of General Linear Models (or GLMs) by taking a closer looking at two final common models: ANCOVA (Analysis of Covariance) and RMA (Repeated Measures ANOVA). We'll show you how additional...

It's the beginning of a new semester! We have some psychological tips that can help you to take better notes.

Today we're going to talk about p-hacking (also called data dredging or data fishing). P-hacking is when data is analyzed to find patterns that produce statistically significant results, even if there really isn't an underlying effect,...

When they're used well, graphs can help us intuitively grasp complex data. But as visual software has enabled more usage of graphs throughout all media, it has also made them easier to use in a careless or dishonest way - and as it turns...