Today from SciShow World News Headquarters (Hank's office) - news about radiation risks, the most hi-def astronomy ever, and the truth about aquatic humanoids.

Body odor is usually normal, but when it's extreme it can be a sign of something gone wrong.

Given the choice between a job candidate with a perfect resume and one who has fought through difficulty, human resources executive Regina Hartley always gives the "Scrapper" a chance. As someone who grew up with adversity, Hartley knows...

Join Caitlin Hoffmeister in this episode of SciShow Space News as we explore the universe!

A trip into space produces physiological effects in human beings, but it can also change a person in a profound, psychological way.

Learn why you may experience jumping in your sleep, and how you can prevent it!

SciShow Space reveals the discovery of a whole new kind of supernova, and the undead stars they leave behind.

Deborah Gordon studies ant colonies in the Arizona desert to understand their complex social system. She asks: How do these chitinous creatures get down to business -- and even multitask when they need to -- with no language, memory or...

Brains are mysterious! Living brains are particularly tough to study, but sometimes scientists can use techniques from other disciplines to get a clearer picture. Here are some ways scientists are adapting tools developed for looking at...

The competitive exclusion principle predicts that there would just be a few species of plankton, but instead there are thousands.

This decade is a moment of choice unlike any we have ever lived, says Christiana Figueres, the architect of the historic 2015 Paris Agreement. The daughter of Costa Rica's beloved President José Figueres Ferrer, she shares how her...

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.

In which John Green teaches you about America's "peculiar institution," slavery. I wouldn't really call it peculiar. I'd lean more toward horrifying and depressing institution, but nobody asked me. John will talk about what life was like...

SciShow Space News explains what happened to Philae, the first spacecraft on the surface of a comet, and shares what scientists say about the future of the mission.

In 2007, as the world worried about a possible avian flu epidemic, Laurie Garrett, author of "The Coming Plague," gave this powerful talk to a small TED University audience. Her insights from past pandemics are suddenly more relevant...

In some parts of the world, it's easier to get an automatic rifle than a glass of clean drinking water. Is this just the way it is? Samantha Nutt, doctor and founder of the international humanitarian organization War Child, explores the...

There's a lot we don't know about how and when dogs were first domesticated. But we do know that the process made dogs very different from their wild cousins, in some unexpected ways.

Did you know that your blood type affects more than just who you can donate blood to?

Today we’re going to take our first baby steps from hardware into software! Using that CPU we built last episode we’re going to run some instructions and walk you through how a program operates on the machine level. We'll show you how...

The most likely cause of the next pandemic will be the “spillover” of a disease from one of a select group of animals with particular immune system traits and interactions with humans.

Because you demanded it .... we break down the EM Drive!

Bitcoin and other blockchain technologies, like NFTs, work a lot like reindeer mating.

A flying car -- it's an iconic image of the future. But after 100 years of flight and automotive engineering, no one has really cracked the problem. Pilot Anna Mracek Dietrich and her team flipped the question, asking: Why not build a...

TeD Fellow Andrew Pelling is a biohacker, and nature is his hardware. His favorite materials are the simplest ones (and oftentimes he finds them in the garbage). Building on the cellulose structure that gives an apple its shape, he...