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.

In September 2015, scientists witnessed something never seen before: two black holes colliding. Both about 30 times as big as our Sun, they had been orbiting each other for millions of years. A fraction of a second before the crash, they...

The feeling of a kicking fetus is perhaps one of the more fun parts of having a baby, but these movements serve a purpose well beyond letting you know that that little thing is in there!

How are different brain stimulations involved with human behaviors--and how can observing a zombie help us understand the brain? In the second part of the Diagnosing Zombies series, two scientists continue to ponder the erratic behaviors...

In the third act of "Swan Lake", the Black Swan pulls off a seemingly endless series of turns, bobbing up and down on one pointed foot and spinning around and around and around thirty-two times. How is this move - which is called a...

All octopuses start out as teeny, tiny plankton, and most grow up to settle down on the seafloor. The blanket octopus, however, never settles down, and spends its life wandering the open ocean.

Last week, it was announced that we've detected gravitational waves on Earth. Now, Hank explains what that means for the future and why it's such a huge deal.

The ocean is the largest ecosystem on Earth, but it's still mostly unexplored. This is partially due to the challenges of ocean exploration, like bone-crushing pressure and the need to bring your own air. But here are five ways that...

Every year the moon’s orbit gets a little bigger and it moves just a little farther away. Should we worry about the Moon breaking free?

Flies are evasive buzzing machines that make it nearly impossible to swat. Luckily, science has some explanation to help you predict their next move.

Emily Graslie joins us to share the wonder of how shoulders, humble as they may be, have played a huge role in the evolution of mammals the world over. Thanks to the Museum of Comparative Zoology at Havard and The Field Museum for...

The world is a living tapestry ... As the weave of life is torn apart in one place, the threads unravel in another, says author and physics professor Vandana Singh, acknowledging humanity's interconnectedness with the planet -- and the...

There are about 500 species of squid, and they live in all the world's oceans, making them a reliable food source for whales, dolphins, sharks, seabirds, fish - and even other squid. As a result, the squid's most extraordinary...

Listen, we know you've thought about it, and we're here to give you THE DEFINITIVE ANSWER to one of the greatest science questions of all time. How long would it take to get to the MOON by farting? Join Gabe on PBS Space Time as we walk...

Today we’re talking about our galactic neighborhood: The Milky Way. It’s a disk galaxy, a collection of dust, gas, and hundreds of billions of stars, with the Sun located about halfway out from the center. The disk has grand spiral...

The spiral of the Milky Way is not as smooth as we once thought because an arm not so far from home appears to be broken! And we may have discovered the answer to why a local asteroid puts on the appearance of a comet.

Arms and legs are pretty similar, from the amount of bones they have to the way their joints bend, but your legs have one thing your arms don't: kneecaps. Ever wonder why?

In this deeply charming and humorous talk, DJ and self-professed pirate Tom Nash meditates on how facing adversity due to disability invited patience, ambition and pragmatism into his life in enlightening, unexpected ways. "We all have...

On Olympus, you've been waiting for an opportunity to bring the bloody Trojan War to its conclusion. The two sides have agreed to a brief truce, and when you consult the Fates, they advise: should the peace last for 10 days, all will end...

What has eight arms, three hearts, and and lives in the ocean? An octopus! Join Jessi and Squeaks as they take a dive into the amazing world of the super weird, super smart octopus!

New ReviewLearn fun and easy jumping skills for kindergarten! This video teaches kids how to jump higher and farther using big arm swings, bent knees, and safe landings, with playful stations like hoops, rivers, hurdles, and catching a ball....

Get ready to groove with our "Let's Move Song"! Perfect for kids, this catchy tune will spark your energy and teach you all about the wonders of staying active and having fun.

This video is answering the question of what are goose bumps.

Chair yoga is a great way to get started on your fitness journey, perfect for beginners!! Enjoy this accessible and effective beginner 3 minute routine to strengthen your core and more!