The Philae lander is awake! And it's sending us data straight from Comet 67P!

There are lots of things that you're allowed to do on earth that you absolutely can't if you're an astronaut. Some of them you wouldn't expect.

If you want to get into space, you need combustible fuel. But if you want to stay operational in space, you need to harness the power of the sun itself.

Aboard Mission Blue, scientist Greg Stone tells the story of how he helped the Republic of Kiribati to create an enormous protected area in the middle of the Pacific -- protecting fish, sealife and perhaps the island nation itself.

Food allergies aren’t exactly rare, but previous attempts to prevent them may have actually made them more common than they would have been otherwise.

Nobel Peace Prize winner Leymah Gbowee has two powerful stories to tell -- of her own life's transformation, and of the untapped potential of girls around the world. Can we transform the world by unlocking the greatness of girls?

Peggy Whitson is back from the International Space Station after breaking a list of records, and a major solar storm delivered the biggest solar flare we've seen in over a decade.

Have you ever seen a kid talk to her friends in English, but to her mom in Spanish? Learning a second language can be really hard for adults, so how do bilingual babies learn two at the same time?

When birds and squirrels cache food for the winter, it means they have to remember where to find that food later. Their strategies for finding their hidden feasts includes memory tricks and changing brains.

As we reboot the world's economy, Geoff Mulgan poses a question: Instead of sending bailout money to doomed old industries, why not use stimulus funds to bootstrap some new, socially responsible companies -- and make the world a little...

Have you had a normal menstrual cycle and then you suddenly miss a period? There are different reasons why this can happen, and if you don't experience a period you were expecting, you’ll probably want to talk to your health care...

One might not think that snow could help anything stay warm through a harsh winter, but these tiny bats have found a way to utilize the insulation provided by the snow: they make little forts to wait out the winter.

Tim urban knows that procrastination doesn't make sense, but he's never been able to shake his habit of waiting until the last minute to get things done. In this hilarious and insightful talk, urban takes us on a journey through YouTube...

It finally happened! The James Webb Space Telescope is on its way to capturing never-before-seen images of the universe! But now that it’s airborne and unfurled, what are its next steps before it can deliver the goods?

Women and girls are conditioned to believe success is "a seat at the table." Creator, actress and author Lilly Singh thinks we need to build a better table. In this hilarious, incisive talk, Singh traces the arc of her career from...

OSIRIS-REx is launching soon and it will become the first American spacecraft to return samples from an asteroid!

Social entrepreneur Bernhard Kowatsch shares real-life examples of how a business approach focused on accelerating tech (like a blockchain-supported way to bring food to refugees or a machine that fortifies flour at small mills in...

On February 10, 2015, Suzanne Barakat's brother Deah, her sister-in-law Yusor and Yusor's sister Razan were murdered by their neighbor in Chapel Hill, North Carolina. The perpetrator's story, that he killed them over a traffic dispute,...

Organ transplants aren’t new, but scientists are still making breakthroughs in transplant success rates and the sources of the organs.

What's the harm in buying a knock-off purse or a fake designer watch? According to counterfeit investigator Alastair Gray, fakes like these fund terrorism and organized crime. Learn more about the trillion-dollar underground economy of...

Imagine winning a multi-million dollar lottery tomorrow. If you're like many of us, you'd be ecstatic, unable to believe your good luck. But would that joy still be there a few years later? Raj Raghunathan describes a phenomenon called...

For six months, Suki Kim worked as an English teacher at an elite school for North Korea's future leaders -- while writing a book on one of the world's most repressive regimes. As she helped her students grapple with concepts like...

You know how resolutions often go: you set a goal and start strong ... then the motivation runs out and feelings of frustration and shame creep in. The struggle is real -- but what if it doesn't have to be? Sociologist Christine Carter...

Architecture is more than a clever arrangement of bricks. In this eloquent talk, Michael Murphy shows how he and his team look far beyond the blueprint when they're designing. Considering factors from airflow to light, theirs is a...