Have you ever wondered if there is anyone (or anything) else out there in the universe? Well, you're not alone. But what would alien life look like? And what would their food chains and food webs look like? In this episode of Crash...

Squeaks is back from his trip around the world! In this episode, he and Jessi discuss the final stop on his trip: Vatnajökull National Park in Iceland.

Squeaks is back from his trip around the world! In this episode, he and Jessi discuss the first stop on his trip: Yellowstone National Park.

Indigo Arts Alliance is an organization focused on supporting contemporary Black and Brown artists and opening doors to artists of color worldwide. It's doing all of this from its home in an unlikely place: Maine. Jeffrey Brown reports...

Colum McCann's Narrative 4 organization is bringing the power of story to students in a time of division. The project helps young people around the world share their stories and bridge divides in politics and culture. Senior arts...

When did practicing medicine - in its varied, complex forms (from sharing medicinal plants to the earliest surgeries) - become something that we actually started doing? While it’s a hard question to answer, it’s possible that our...

It would take decades for paleontologists to realize that maybe there wasn’t just one so-called "cradle of humankind," and realize that maybe they’d been asking the wrong question all along.

Since the time of the ancient Greeks, scientists have been constructing a cosmic measuring tape to measure the universe from our own backyard all the way to its ever-expanding edge: the cosmic distance ladder. In this video, we climb...

The Inca Empire used bundles of knotted string called khipu to store and convey information. But how do you read a bunch of strings? And was this a unique form of writing... or knot?<b<br/>r/>

Hosted by: Stefan Chin

The conditions in many medicine cabinets turn out to be detrimental for medicines—some worse than others. <b<br/>r/>

Hosted by: Hank Green (he/him)

This October, the launch window opens for NASA's Europa Clipper mission. When it arrives in the Jovian system, this spacecraft will probe the icy moon...and its ocean buried kilometers beneath the surface...for the ingredients of life...

Climate disruption threatens food security around the world, but it's especially dangerous for fish farmers. Here's how high-tech climate information services can help then adapt.<b<br/>r/>

Hosted by: Hank Green (he/him)

Duncan Keegan doesn't consider himself a poet, but this deeply beautiful talk shows otherwise. With simple grace and quiet eloquence, he celebrates family, connection and togetherness, often most called for at the hardest of times.

What if the race to save the planet is harming the people who protect it? Indigenous advocate Galina Angarova exposes the hidden cost of the green energy transition, where the demand for minerals like nickel and lithium threatens to...

No substance has been as constant an ally to insidious scheming as arsenic, the so-called “king of poisons.” In its chemically pure form, it isn’t much of a threat because our bodies don’t absorb it well; it’s when arsenic combines with...

Many animal species stuff themselves with toxic chemicals for protection, which forces them to use a handful of distinct strategies to avoid becoming victims of their own weapons.

Venezuela’s Lake Maracaibo is home to a legendary lightning storm that has been going on for over 500 years.

Humans eat a lot of different animals, but almost none of them are carnivores - why?

Political scientist Robert Putnam told Judy Woodruff that strengthening the country’s democracy would begin with grassroots efforts by people stepping up in their own communities. Those efforts will be her focus this year and she begins...

Allyson Felix, retired track start, is campaigning for a seat on the International Olympic Committee's Athletes' Commission. She hopes to amplify athletes' voices and advocate for meaningful change, such as enhancing family support and...

The future of Telegram remains uncertain as it faces legal challenges and regulatory scrutiny from multiple governments. While the platform has adopted a combative stance, its model—offering partially open communication but resisting...

The debate over holding social media users accountable for harmful or false content highlights the tension between free speech and the responsibilities that come with vast online reach. Online democracy advocate Eli Pariser explains...

Today, some companies are working hard to prevent consumers from repairing products on their own. In many cases, repair can only be done by the original manufacturer, if at all. With limited repair options available, we end up buying new...

Lily Yeh calls herself a barefoot artist: she travels the world with a suitcase full of art supplies, working with whoever wants to join her. In an inspiring talk, she shares the fruits of her collaborative art projects that bring color,...