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How Many Stars Are There?

AdultsScienceSpaceAstronomy
Counting stars from the shore of the cosmic ocean...

Could We Stop An Asteroid? Feat. Bill Nye

AdultsScienceSportsTechnology...
Could we stop an asteroid on a collision course for Earth?

Solar eclipse: 2015 - Stargazing Live

AdultsScienceSpaceAstronomy...
Miss The Solar Eclipse This Year? Watch This Incredible Footage Of It!

Why do we get dark bags under our eyes?

AdultsHealthHumanScience...
A weekly show where we endeavour to answer one of your big questions. This week, "bored during school" asks, "Why do we get dark bags under our eyes when we're tired?"

How Do Chameleons Change Color?

AdultsAnimalsNatureBiology...
New research shows chameleons actively tune nano-crystals to change their color.

The Most Important Science Images Ever

AdultsPhotographyScienceCulture
One picture can change the world.

Why Do We Only See One Side of the Moon?

AdultsScienceSpaceAstronomy
Only one side of the Moon is visible from Earth because the Moon rotates about its spin axis at the same rate that the Moon orbits the Earth, a situation known as synchronous rotation or tidal locking.

Dark matter: The matter we can't see

AdultsPhysicsSpaceScience...
The Greeks had a simple and elegant formula for the universe: just earth, fire, wind, and water. Turns out there's more to it than that -- a lot more. Visible matter (and that goes beyond the four Greek elements) comprises only 4% of the universe. CERN scientist James Gillies tells us what accounts for the remaining 96% (dark matter and dark energy) and how we might go about detecting it.

Experiment Shows That All Of Us Are Naturally Altruistic

AdultsHumanPhilosophySociety...
Put to work at the Max Planck Institute for Evolutionary Anthropology in Germany, Alan Alda finds out how children will help, and like it, while chimps are less inclined to offer enthusiastic assistance.

The Science of BBQ!!!

AdultsFoodScienceFun
Science is delicious.

What Colour Is This Dress?

AdultsInternet CultureScienceSocial Media...
Solved with science for the sake of the human race!!

How optical illusions trick your brain

AdultsVisual DesignSciencePsychology...
Optical illusions are images that seem to trick our minds into seeing something different from what they actually are. But how do they work? Nathan S. Jacobs walks us through a few common optical illusions and explains what these tricks of the eye can tell us about how our brains assemble visual information into the 3D world we see around us.

Productivity Future Vision

AdultsFutureProductivityTechnology...
How could emerging technology transform the way get things done 5-10 years in the future? Watch Kat, a young independent marine biologist, and Lola, a corporate executive, work together in a highly interconnected and information rich future.

The Science of Heartbreak

AdultsRelationshipsSciencePsychology...
Why is a 'broken heart' so painful?

If superpowers were real: Super speed

AdultsHumanPhysicsScience...
What if super speed wasn't just the stuff of epic comic book stories? Is it scientifically possible to be super speedy? In this series, Joy Lin tackles six superpowers and reveals just how scientifically realistic they can be to us mere mortals.

Why Vaccines Work

AdultsHealthHistoryScience...
As more and more parents are choosing not to vaccinate their children or are vaccinating them later, diseases like measles are making a comeback. Are vaccines safe? How do they work? This week we look at why are people afraid of something that has saved so many lives, and look at the history and science of vaccines.

Scientific Weight Loss Tips

AdultsScienceWellnessHealth...
Tired of searching for the perfect diet or pill to shed some pounds? Find out the top weight loss tips, with solid science to back them up.

How Big is the Solar System?

AdultsPhysicsScienceSpace...
The true scale of our cosmic neighborhood. Whoa.

Can Video Games Make You Smarter?

AdultsGamingScienceEducation...
Are video games good for you?

The Far Future of the Universe

AdultsFutureSpaceScience
This episode was a part of a collaboration with several other PBS Digital Studios shows, all talking about the future!!

Why is yawning contagious? - Claudia Aguirre

AdultsHumanSciencePsychology...
*Yaaawwwwwn* Did just reading the word make you feel like yawning yourself? Known as contagious yawning, the reasons behind this phenomenon have been attributed to both the physiological and psychological. It's been observed in children as young as four and even in dogs! Claudia Aguirre visits the many intriguing theories that might explain contagious yawning.