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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 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
- Now Playing8minWhat Was The Earliest Surgery?
- Now Playing13minSpace is Full of Junk. Here's How to Clean It Up...
- Now Playing15minDark Forest: Should We Not Contact Aliens?
It's Okay to Be Smart
- Now Playing8minWhy Is Blue So Rare In Nature?
- Now Playing3minWhy I PBS
- Now Playing4minHow to See Time Travel!!!
- Now Playing9minIs This A NEW SPECIES?!
- Now Playing6minWhat is Luck?
- Now Playing5minWhy Music Moves Us
- Now Playing6minThe Delicious Science of CHEESE!
- Now Playing6minAttack of the Cosmic Space Junk!
- Now Playing4minThe Ruin and Rise of Monterey Bay
- Now Playing13minDoes Someone Else Have Your Face?
- Now Playing5minHow Many Trees Are There?
- Now Playing6minThe Largest River On Earth Is In The Sky
- Now Playing3minDoes Evolution Have a Point? 12 Days of Evolution #12
- Now Playing6minCRISPR and the Future of Human Evolution
- Now Playing12minUsing Gene Editing To Repaint Butterfly Wings
- Now Playing4minWhy Seasons Make No Sense
- Now Playing2minWhat Is Evolution, Anyway? - 12 Days of Evolution #1
- Now Playing4minHow Poop Shapes the World
- Now Playing8minThe Science of Game of Thrones
- Now Playing6minWhy It Is What Time It Is (The History of Time)
Origin of Everything
- Now Playing9minWhy Do All Malls Look the Same?
- Now Playing8minWhere does the Nuclear Family Come From?
- Now Playing9minThe Origin of Gender
- Now Playing10minThe 2nd Amendment Explained
- Now Playing10minWhy Do We Have Hobbies?
- Now Playing7minWhy Do We Eat Popcorn at The Movies?
- Now Playing11minWhy Do So Many Religions Have Headwear?
- Now Playing9minThe Origin of Gender
- Now Playing7minThe True Origin of Killer Clowns
- Now Playing8minWhy Did Europeans Enslave Africans?
- Now Playing9minWhy Do We Drink Milk in School?
- Now Playing8minWhy Do We Get Grades in School?
- Now Playing10minWhat is Ethnicity?
- Now Playing7minWhy Does Santa Wear Red?
- Now Playing6minWhy Do We Have Middle Names?
- Now Playing8minWhy Do People Have Pets?
- Now Playing11minWhat is Racial Passing?
- Now Playing12minSix Historically True Facts about Money
- Now Playing8minWhy Do We Eat Artificial Flavors?
- Now Playing12minWhy Do We Have Housing Projects?
Two Cents
- 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 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 Playing5minInsta-Everything
- Now Playing7minHow Retailers Stalk You Online
- Now Playing6minI'm Young & Healthy, Can I Skip Health Insurance?
- Now Playing9minHow Smart Entrepreneurs Think About PRICES!
- Now Playing5minHow Do Your Tax Dollars Get Spent?
- Now Playing5minHow are credit scores calculated?
- Now Playing8min5 Strange Investor Crazes!
- Now Playing6minHacking Your Brain to Get Out Of Debt
Monstrum
- Now Playing10minIs Yuki-onna the Most Terrifying Snow Monster?
- Now Playing17minModern Zombies: The Rebirth of the Undead
- Now Playing12minThe Origins of 'Big Bug' Science Fiction
- Now Playing13minLeprechaun: From Gold-Loving Cobbler to Cultural Icon
- Now Playing11minCan All Monsters Be Traced Back to Tiamat?
- Now Playing10minHow Bloody Mary Turns Fear Into Fun
- Now Playing10minPontianak: The Vampiric Ghost of Southeast Asia
- Now Playing10minThe Enchanting Fairies of Celtic Lore
- Now Playing8minWerehyena: The Terrifying Shapeshifters of African Lore
- Now Playing15minBaba Yaga: The Ancient Origins of the Famous 'Witch'
- Now Playing12minDeath Worms: Fact or Fiction?
- Now Playing13minWhat Happened During Our Scary Slumber Party
- Now Playing13minThe SCP Foundation: Declassified
- Now Playing10minYara-ma-yha-who: Australia's Regurgitating, Blood-Sucking Mo
- Now Playing6minThe Origin of Medusa
- Now Playing10minWill-o'-the-Wisp: Monstrous Flame or Scientific Phenomenon?
- Now Playing11minBasilisk or Cockatrice? The Mysterious King of Serpents
- Now Playing10minJorōgumo: The Deadly Spider Woman from Yokai Lore
- Now Playing11minThe Original Urban Legend: Spring-Heeled Jack
- Now Playing6minRethinking Frankenstein's Monster
Eons
- Now Playing8minHow Did Our Most Famous Ancestor Really Die?
- Now Playing10minThe Neanderthals That Taught Us About Humanity
- Now Playing10minThese Creatures Were Darwin's Greatest Enemy
- Now Playing10minWhen We First Made Tools
- Now Playing10minWhen Humans Were Prey
- Now Playing5minWhen Whales Walked
- Now Playing10minHow Weasels Got Skinny
- Now Playing12minWhen Birds Had Teeth
- Now Playing12minWhere Are All the Medium-Sized Dinosaurs?
- Now Playing10minThe World Before Plate Tectonics
- Now Playing8minThe Hellacious Lives of the "Hell Pigs"
- Now Playing8minDo Thunderbeasts Prove Giant Animals Are Inevitable?
- Now Playing8minInside the Dinosaur Library
- Now Playing12minWhen Antarctica Was Green
- Now Playing12minThe Humans That Lived Before Us
- Now Playing10minThat Time the American West Blew Up
- Now Playing12minAnimals Are Older Than We Thought
- Now Playing10minHow Dogs (Eventually) Became Our Best Friends
- Now Playing9minWhen Apes Conquered Europe
- Now Playing9minAre We All Actually Archaea?
Hot Mess
- Now Playing6minWhat Indigenous Communities Teach Us About Climate Change
- Now Playing5minClimate change will push millions out. Where will they go?
- Now Playing6minWhat if Carbon Emissions Stopped Tomorrow?
- 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 Playing4minWhy Are Hurricanes Getting Stronger?
- Now Playing5minWhat the Cutest Animal Can Teach Us About Saving Ourselves
- Now Playing5minWe've Ignored Climate Change For More Than a Century
- 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 Playing5minBeef Is Bad For The Climate. Can We Make It Better?
- Now Playing5minWhat the Cutest Animal Can Teach Us About Saving Ourselves
- Now Playing5minWe've Ignored Climate Change For More Than a Century
- Now Playing6minCan We Get Solar Power To Everyone Who Wants It?
- Now Playing5minCan Farms and Forests Coexist?
- Now Playing5minWhat Can You Actually Do About Climate Change?
- Now Playing10minThe Link Between Extreme Weather and Climate Change
- Now Playing5minWhy Don't We Hear About the Ozone Hole Anymore?
Space Time
- Now Playing12minThe Black Hole Entropy Enigma
- Now Playing11minHow Cosmic Inflation Flattened the Universe
- Now Playing11minWill A New Neutrino Change The Standard Model?
- Now Playing12minDark Matter: Crash Course Astronomy #41
- Now Playing10minWhat Does Dark Energy Really Do?
- Now Playing13minWhere Are The Worlds In Many Worlds?
- Now Playing13minComputing a Universe Simulation
- Now Playing13minQuantum Gravity and the Hardest Problem in Physics
- Now Playing15minNeutron Stars: The Most Extreme Objects in the Universe
- Now Playing13minAre Axions Dark Matter?
- Now Playing10minHow Much Information is in the Universe?
- Now Playing12minDoes Quantum Immortality Save Schrödinger's Cat?
- Now Playing11minWhy Haven't We Found Alien Life?
- Now Playing10minNoether's Theorem and The Symmetries of Reality
- Now Playing11minExtraterrestrial Superstorms
- Now Playing12minWhat If (Tiny) Black Holes Are Everywhere?
- Now Playing6minSpace Used to Be Orange!!
- Now Playing16minWhat Supernova Distance Would Trigger Mass Extinction?
- Now Playing9minThe True Nature of Matter and Mass
- Now Playing10minS2: Is Quantum Tunneling Faster than Light?
Beat Making Lab
- 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 Playing3minExclusive Zenga (Music Video) by Flamme Kapaya
- Now Playing3minBeat Making Challenge #2: Kora Riddim
- Now Playing3minFemale Hip Hop Crew Makes Beats in Senegal
- 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 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
Infinite Series
- Now Playing12minThe Honeycombs of 4-Dimensional Bees ft. Joe Hanson
- Now Playing14minTopology Riddles | Infinite Series
- Now Playing10minUnraveling DNA with Rational Tangles
- Now Playing9minHow Many Humans Have the Same Number of Body Hairs?
- Now Playing10minThe Assassin Puzzle
- Now Playing9minHow Many Humans Have the Same Number of Body Hairs?
- Now Playing8minHow to Divide by "Zero"
- Now Playing11minSingularities Explained
- Now Playing9minBeyond the Golden Ratio
- Now Playing15minDissecting Hypercubes with Pascal's Triangle
- Now Playing14minInfinite Chess
- Now Playing11minVoting Systems and the Condorcet Paradox
- Now Playing15minArrow's Impossibility Theorem
- Now Playing9minA Hierarchy of Infinities
- Now Playing8minA Breakthrough in Higher Dimensional Spheres
- Now Playing14minBuilding an Infinite Bridge
- Now Playing13minThe Mathematics of Quantum Computers
- Now Playing14minSolving the Wolverine Problem with Graph Coloring
- Now Playing14minCan a Chess Piece Explain Markov Chains?
- Now Playing10minWhat Does It Mean to Be a Number? (The Peano Axioms)
Idea Channel
- Now Playing5minIs William Gibson A Modern Day Oracle?
- Now Playing6minIs Minecraft the Ultimate Educational Tool?
- Now Playing5minAre Memes and Internet Culture Creating a Singularity?
- Now Playing7minHow are Justin Bieber, Franz Liszt and Jerusalem Connected?
- Now Playing5minAre Olympic Competitors Geniuses?
- Now Playing4minRussian Meteorites and Surveillance Culture
- Now Playing4minAre LOLCats and Internet Memes Art?
- Now Playing4minAre Mashups the End of Music Genres?
- Now Playing5minIs William Gibson A Modern Day Oracle?
- Now Playing4minIs Twitter the Newest Form of Literature?
- Now Playing4minHas the Microsoft Kinect revolutionized art?
- Now Playing3minIs the Web Browser Replacing the Art Gallery?
- Now Playing4minFrom Sherlock Holmes to 50 Shades of Grey
- Now Playing9minWill Kickstarter Replace Hollywood?
- Now Playing5minNicolas Cage, Taoism, and YOLO
- Now Playing8minIs a Tagged Instagram More Than Just a Photo?
- Now Playing9minCan Video Games Become the Next Spectator Sport?
- Now Playing4minAre Mashups the End of Music Genres?
- Now Playing8minDo Knock-Offs Prove the Value of a Brand?
- Now Playing6minWhat Do Santa and Wrestling Have In Common?