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Space TimeSpace Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth.
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- Now Playing22minCan AI Help Us Talk to Whales?
- Now Playing11minThe Hazy Evolution of Cannabis
- Now Playing11minMeasuring the Universe With a 14-Billion Light-Year Ruler
- Now Playing16minHow Eclipses Revealed Our Solar System
- Now Playing10minA Giant Monster With a Giant Problem
- Now Playing10minWhat Will Earth Be Like 300 Million Years From Now?
- Now Playing16minWhat If Gravity is Not A Fundamental Force?
- Now Playing15minDoes Space Emerge From A Holographic Boundary?
- Now Playing8minIs the Southern Accent Disappearing?
- Now Playing15minThis Winter Trend Is Overpowering Global Warming
It's Okay to Be Smart
- Now Playing5minThe Only Animal That Weeps
- Now Playing6minThe Science of Beer
- Now Playing6minDNA Doesn't Look Like What You Think!
- Now Playing6minHow To Hit A Fastball (According To Science!!!)
- Now Playing2minWhy Are There Still Monkeys? - 12 Days of Evolution #10
- Now Playing3minWhy Do We Go to Space?
- Now Playing10minCould You Be a Chimera?
- Now Playing9minCan You Bend Light Like This?
- Now Playing8min20 MILLION Year-Old Spider!! Unweaving Spider Silk
- Now Playing4minPutting Hurricane Harvey In Perspective
- Now Playing7minWhich Life Form REALLY Dominates Earth?
- Now Playing5minHow Much Plastic is in the Ocean?
- Now Playing5minBats: Guardians of the Night
- Now Playing4minSpace Sounds
- Now Playing6minWhat's the Deadliest Animal in the World?
- Now Playing5minDo You Really Have Two Brains?
- Now Playing8minScience of Marathon Running
- Now Playing7minEinstein Was Right: Gravitational Waves Edition
- Now Playing7minIs Height All in Our Genes?
- Now Playing5minThe Superb Owl!
Origin of Everything
- Now Playing11minWhy Do We Have Private Prisons?
- Now Playing10minDo Standardized Tests Do More Harm Than Good?
- Now Playing10minHow Did Makeup Ads Go From Style to Science?
- Now Playing8minWhere does the Nuclear Family Come From?
- Now Playing10minThe Origin of Race in the USA
- Now Playing9minHow Did Edison Invent Christmas Lights?
- Now Playing5minWhat Was Jesus' Real Name?
- Now Playing9minWhat If There Were No Taxes?
- Now Playing6minWhy it Was Illegal to be Ugly?
- Now Playing10minWould You Have Joined the American Revolution?
- Now Playing11minWhy Are We Obsessed with Cults?
- Now Playing11minWhy Does the Government Pay for Art?
- Now Playing10minWhy Does the Government Need to Know My Race?
- Now Playing9minCan Tattoos Be Taboo?
- Now Playing9minDoes the Rorschach Inkblot Test Work?
- Now Playing10minHow Did Martin Luther King Jr. Get a Holiday?
- Now Playing11minModern Warfare and Alien Invasions
- Now Playing7minWhy are 18 Year Olds Considered Adults?
- Now Playing9minCan Tattoos Be Taboo?
- Now Playing8minWhy Do Kids Have Their Own Bedrooms?
Two Cents
- Now Playing7minMoney, A Global Game of Trust
- Now Playing7minWhich College Majors Give the Most Bang for Your Buck?
- Now Playing6minIs My Identity Safe From Hackers?
- Now Playing6minFighting the Wedding Industrial Complex
- Now Playing7minIs Your Side Hustle Hustling You?
- Now Playing7minFighting the Financial Pitfalls of the Supermarket
- Now Playing5minDo Kids Need to Learn About Money?
- Now Playing7minHow Retailers Stalk You Online
- Now Playing5minInsta-Everything
- Now Playing6minI'm Young & Healthy, Can I Skip Health Insurance?
- Now Playing9minHow Smart Entrepreneurs Think About PRICES!
- Now Playing7minWhy It's More Expensive To Be Poor
- Now Playing6minTop 5 Biggest Financial Scams
- Now Playing7minShould I Invest In Cannabis Stocks?
- Now Playing6minHow to Ask for a Raise
- Now Playing7minWhat's The Real Cost of Dying?
- Now Playing6minWhat is The Cost of Pet Ownership?
- Now Playing6minShould I Buy Bitcoin?
- Now Playing8minAre "Free" Video Games Really Free?
- Now Playing8min5 Ways People Are Dumb About Money
Monstrum
- Now Playing11minBasilisk or Cockatrice? The Mysterious King of Serpents
- Now Playing10minJorōgumo: The Deadly Spider Woman from Yokai Lore
- Now Playing6minThe Origin of Medusa
- Now Playing10minWill-o'-the-Wisp: Monstrous Flame or Scientific Phenomenon?
- Now Playing11minThe Original Urban Legend: Spring-Heeled Jack
- Now Playing6minRethinking Frankenstein's Monster
- Now Playing12minWas Púca the Nightmare Bunny That Inspired Donnie Darko?
- Now Playing8minCreepy Clowns: The Horror Behind the Laughter
- Now Playing11minThe Fatal Song of the Sirens
- Now Playing14minThe Evolution of Creepy Dolls
- Now Playing8minNuckelavee: Scotland's Skinless Evil Monstrosity
- Now Playing13minLeprechaun: From Gold-Loving Cobbler to Cultural Icon
- Now Playing12minThe Origins of 'Big Bug' Science Fiction
- Now Playing10minIs Yuki-onna the Most Terrifying Snow Monster?
- Now Playing17minModern Zombies: The Rebirth of the Undead
- Now Playing10minHow Bloody Mary Turns Fear Into Fun
- Now Playing11minCan All Monsters Be Traced Back to Tiamat?
- Now Playing10minPontianak: The Vampiric Ghost of Southeast Asia
- Now Playing10minThe Enchanting Fairies of Celtic Lore
- Now Playing10minYara-ma-yha-who: Australia's Regurgitating, Blood-Sucking Mo
Eons
- Now Playing6minThe Time Terror Birds Invaded
- Now Playing8minWhen Dinosaur Look-Alikes Ruled the Earth
- Now Playing8minHow Plate Tectonics Gave Us Seahorses
- Now Playing7minWhen Giant Deer Roamed Eurasia
- Now Playing10minWhen Fish Wore Armor
- Now Playing8minThe Ghostly Origins of the Big Cats
- Now Playing8minThat Time It Rained for Two Million Years
- Now Playing8minWhat Happened to the World's Greatest Ape?
- Now Playing10minHow 7,000 Years of Epic Floods Changed the World
- Now Playing12minCan We Get DNA From Fossils?
- Now Playing10minThe Facts About Dinosaurs & Feathers
- Now Playing9minWhen Rodents Had Horns
- Now Playing11minHow a Mass Extinction Changed Our Brains
- Now Playing9minThe Invisible Barrier Keeping Two Worlds Apart
- Now Playing13minAn Illustrated History of Dinosaurs
- Now Playing13minHow Evolution Works (And How We Figured It Out)
- Now Playing9minThe Fungi That Turned Ants Into Zombies
- Now Playing5minWhen Whales Walked
- Now Playing11minFrom the Cambrian Explosion to the Great Dying
- Now Playing8minWhen Birds Stopped Flying
Hot Mess
- Now Playing6minWhat Indigenous Communities Teach Us About Climate Change
- Now Playing6minWhat if Carbon Emissions Stopped Tomorrow?
- Now Playing5minClimate change will push millions out. Where will they go?
- Now Playing5minBeef Is Bad For The Climate. Can We Make It Better?
- Now Playing11minClimate Change is Too Big for our Brains feat. Mike Rugnetta
- Now Playing6minWhat if Carbon Emissions Stopped Tomorrow?
- Now Playing5minHow A Sticker Kept 3 Billion Tons of CO2 Out of The Air
- Now Playing5minWhat Can You Actually Do About Climate Change?
- Now Playing5minWhat's actually the worst greenhouse gas?
- Now Playing5minWhat the Cutest Animal Can Teach Us About Saving Ourselves
- Now Playing4minWhy Are Hurricanes Getting Stronger?
- Now Playing5minWe've Ignored Climate Change For More Than a Century
- Now Playing5minWe've Ignored Climate Change For More Than a Century
- Now Playing5minBeef Is Bad For The Climate. Can We Make It Better?
- Now Playing5minWhat the Cutest Animal Can Teach Us About Saving Ourselves
- Now Playing5minWhat Can You Actually Do About Climate Change?
- Now Playing5minCan Farms and Forests Coexist?
- Now Playing10minThe Link Between Extreme Weather and Climate Change
- Now Playing5minWhy Don't We Hear About the Ozone Hole Anymore?
- Now Playing6minCan We Get Solar Power To Everyone Who Wants It?
Space Time
- Now Playing13minWhere Are The Worlds In Many Worlds?
- Now Playing10minWhat Does Dark Energy Really Do?
- Now Playing12minDark Matter: Crash Course Astronomy #41
- Now Playing13minComputing a Universe Simulation
- Now Playing13minQuantum Gravity and the Hardest Problem in Physics
- Now Playing12minThe Black Hole Entropy Enigma
- Now Playing11minHow Cosmic Inflation Flattened the Universe
- Now Playing11minWill A New Neutrino Change The Standard Model?
- Now Playing11minWhy Haven't We Found Alien Life?
- Now Playing12minDoes Quantum Immortality Save Schrödinger's Cat?
- Now Playing10minHow Much Information is in the Universe?
- Now Playing13minAre Axions Dark Matter?
- Now Playing15minNeutron Stars: The Most Extreme Objects in the Universe
- Now Playing11minExtraterrestrial Superstorms
- Now Playing10minNoether's Theorem and The Symmetries of Reality
- Now Playing6minSpace Used to Be Orange!!
- Now Playing12minWhat If (Tiny) Black Holes Are Everywhere?
- Now Playing10minS2: Is Quantum Tunneling Faster than Light?
- Now Playing9minThe True Nature of Matter and Mass
- Now Playing16minWhat Supernova Distance Would Trigger Mass Extinction?
Beat Making Lab
- Now Playing2minWalshy Fire [of Major Lazer] Wants Your Riddims
- Now Playing4minCho Cho Cho (Music Video) filmed in Goma, Congo
- Now Playing3minGet Your Drums Right
- Now Playing2minField Trip: Prison Beats
- Now Playing2minMashup: National Anthems
- Now Playing10minHeartbeats of Fiji
- Now Playing3minBeat Making Challenge #1: Accordion Trap
- Now Playing2minWhat's In the Backpack?
- Now Playing5minBehind the Beat: Portobelo
- Now Playing3minPanama: Meet the Kids Behind the Beats
- Now Playing2minHealth Worker Beat
- Now Playing4minTrapped In Paradise
- Now Playing4minPortobelo (music video)
- Now Playing3minBehind The Beat: First Beat Making Lab (2011)
- Now Playing3minSampling w/ Flip Flops and Ski Beatz
- Now Playing3minProf. Angel Sound Prison Beats Interview
- Now Playing3min#FijiChallenge w/ Walshy Fire of Major Lazer
- Now Playing3minEpisode 1: Goma, Congo
- Now Playing4minDiablos (music video)
- Now Playing3minBeat Making Challenge #2: Kora Riddim
Infinite Series
- Now Playing11minThe Geometry of SET
- Now Playing14minBuilding an Infinite Bridge
- Now Playing9minAssociahedra: The Shapes of Multiplication
- Now Playing16minHow to Break Cryptography
- Now Playing17minSplitting Rent with Triangles
- Now Playing15minDissecting Hypercubes with Pascal's Triangle
- Now Playing13minNetwork Mathematics and Rival Factions | Infinite Series
- Now Playing10minInstant Insanity Puzzle
- Now Playing14minMaking Probability Mathematical
- Now Playing11minWhat are Numbers Made of?
- Now Playing12minProving Pick's Theorem
- Now Playing8minTelling Time on a Torus
- Now Playing11minDefining Infinity
- Now Playing11minWhat was Fermat's "Marvelous" Proof?
- Now Playing12minWhen Pi is Not 3.14
- Now Playing13minThe Mathematics of Quantum Computers
- Now Playing9minThis Video was Not Encrypted with RSA
- Now Playing17minHacking at Quantum Speed with Shor's Algorithm
- Now Playing9minProving Brouwer's Fixed Point Theorem
- Now Playing11minDefining Infinity
Idea Channel
- Now Playing5minAre Olympic Competitors Geniuses?
- Now Playing5minIs CSS and Website Design a Fashion Statement?
- Now Playing5minHow will the Animated GIF affect the Presidential Election?
- Now Playing9minIs the Universe a Computer?
- Now Playing9minCan Video Games Become the Next Spectator Sport?
- Now Playing8minDo Knock-Offs Prove the Value of a Brand?
- Now Playing4minAre Mashups the End of Music Genres?
- Now Playing6minWhat do MP3s and Magic Spells Have in Common?
- Now Playing5minIs Facebook Changing Our Identity?
- Now Playing6minWhat Do Santa and Wrestling Have In Common?
- Now Playing9minIs a DOS Attack a Weapon?
- Now Playing4minThe Bronies Phenomenon
- Now Playing3minAn Interview with Minecraft EDU Creator Joel Levin
- Now Playing6minIs Doctor Who a Religion?
- Now Playing6minShould "Happy Birthday" be Protected by Copyright?
- Now Playing6minThe Retro Awesomeness of Adventure Time
- Now Playing5minIs Homestuck the Ulysses of the Internet?
- Now Playing5minThere's No Such Thing as Online?!?
- Now Playing5minA Visit to Mr. Monfre's Class
- Now Playing4minAre LOLCats and Internet Memes Art?