In a war, it turns out that violence isn't the biggest killer of civilians. What is? Illness, hunger, poverty -- because war destroys the institutions that keep society running, like utilities, banks, food systems and hospitals....

Is the equinox really when day = night, or is that a myth?

In this passionate talk, legendary spacecraft designer Burt Rutan lambasts the US government-funded space program for stagnating and asks entrepreneurs to pick up where NASA has left off.

There are millions of prodigiously gifted musicians of disability around the world, and Charles Hazlewood is determined to give them a platform. Watch the debut performance of the British Paraorchestra.

Think of penguins as ocean sentinels, says Dee Boersma -- they're on the frontlines of sea change. Sharing stories of penguin life and culture, she suggests that we start listening to what penguins are telling us.

If gulls just stole some of your chips while you were out trying to enjoy your lunch, you should feel lucky, because one species has recently developed a taste for live mammal meat!

If you can't afford an attorney, one will be appointed for you, right? Not in US civil court. From high legal fees to confusing paperwork and expensive lawyers, it can be difficult to settle civil matters. Entrepreneur and TED Fellow...

Michael Aranda hosts SciShow's new Quiz Show! Hank and Reid have a battle of wits to win prizes for two lucky Subbable Subscribers!

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You might have heard that one year in a dog’s life is equivalent to seven in a human’s. But it turns out that the real ratio is both higher AND lower—depending on your dog’s current age.

From hours-long lines and limited polling locations to confusing and discriminatory registration policies, why is it so hard to vote in the US? Voting rights expert Amber McReynolds offers a proven alternative: a new process, already...

(NOTE: Statements in this talk have been challenged by scientists working in this field. Please read "Criticisms & Updates" below for more details.) Psychologist Philip Zimbardo asks, "Why are boys struggling?" He shares some stats...

Speaking as both an astronomer and "a concerned member of the human race," Sir Martin Rees examines our planet and its future from a cosmic perspective. He urges action to prevent dark consequences from our scientific and technological...

In ancient Rome, Vestal Virgins were tasked with keeping vigil over the flame of Vesta, the virgin goddess of the hearth. The flame represented two things: the continuation of Rome as a power in the world and the continuing virginity of...

Since the widespread use of antibiotics began in the 1940s, we've tried to develop new drugs faster than bacteria can evolve -- but this strategy isn't working. Drug-resistant bacteria known as superbugs killed nearly 700,000 people last...

An asteroid streaked across Arizona's night sky, and we have a new theory on where the hypothetical Planet Nine came from.

When two bodies wearing identical wetsuits washed ashore in Norway and the Netherlands, journalist Anders Fjellberg and photographer Tomm Christiansen started a search to answer the question: who were these people? What they found and...

The world's largest volunteer animal rescue, saved more than 40,000 penguins after an oil spill off the coast of South Africa. Dyan deNapoli tells the triumphant story. How does a job this big get done? Penguin by penguin by penguin ...

We’ll each have at least $100,000 more in our piggy banks, on average, if we stop climate change than if we don’t.

Hank introduces us to the brilliant and heartless Fritz Haber, a great mind who is considered "the father chemical warfare," but who also made discoveries and innovations that helped lead to the Green Revolution which is credited with...

Waste not, want not.... right? Poop, in all of its various forms throughout nature, shapes the world in ways you might not imagine. One creature's waste is another's fuel, and all over nature these leftovers help new life spring up....

In December 1910, the exiled former leader Manuel Bonilla boarded a borrowed yacht and set sail for Honduras in hopes of reclaiming power by whatever means necessary. Bonilla had a powerful backer: the notorious organization known...

Jessi has a special guest today who is an expert on the night sky! Join Jessi and Sam the Bat to learn all about constellations, and to test your star knowledge by making flash cards!

The sun is beginning a new weather cycle, causing debate among scientists about how intense things are going to get, and elsewhere, scientists are looking into just how fluid our early universe was.

12,000 years ago, the earth was very different, and so were some of the animals living on it! Here are 5 giants creatures you might have seen back then.