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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 Playing5minWhy Music Moves Us
- Now Playing7minIs Height All in Our Genes?
- Now Playing4minDogs and Humans: A 30,000-Year Friendship (ft. MinuteEarth)
- Now Playing5minIs Inheritance Really All In Our Genes?
- Now Playing6minWhy Are There As Many Males As Females?
- Now Playing5minCould Planet Minecraft Actually Exist?
- Now Playing6minShould You Be Worried About Zika?
- Now Playing9minThe Sixth Extinction
- Now Playing5minHow Many Species Are There?
- Now Playing5minDo Animals Mourn Their Dead?
- Now Playing6min100,000,000 Years From Now
- Now Playing4minMy Date With A Giant Pacific Octopus!
- Now Playing7minSonic the Hedgehog Is Why You Have Thumbs!
- Now Playing7minWhat is Farthest Away?
- Now Playing2minEvolution Is Dumb - 12 Days of Evolution #6
- Now Playing7minWhy Vaccines Work
- Now Playing8minHow Big is the Solar System?
- Now Playing4minHow Many Stars Are There?
- Now Playing7minWe Got Ants In Our Plants!
- Now Playing7minYour Salad Is Trying To Kill You
Origin of Everything
- Now Playing10minIs Breakfast the Most Important Meal?
- Now Playing7minHow Your Rubber Ducky Explains Colonialism
- Now Playing8minWhy is there a North and South Korea?
- Now Playing7minHow Columbus Invented Cannibals
- Now Playing10minWhy was Pink for Boys and Blue for Girls?
- Now Playing12minWhy Do Schools Teach Sex Education?
- Now Playing7minHow did Makeup, WWII, & Communism Create U.S. Healthcare?
- Now Playing8minWhy Do Women Give Birth Lying Down?
- Now Playing8minWhy Was Crossdressing Illegal?
- Now Playing8minWhen DId Marriage Become about Love?
- Now Playing7minWhy Do We Say "Asian American" Not "Oriental"?
- Now Playing8minWhy Do People Have Pets?
- Now Playing11minWhy Do We Have Private Prisons?
- Now Playing10minWhat is Ethnicity?
- Now Playing10minWhy Does the Government Need to Know My Race?
- Now Playing8minWhy Do We Get Grades in School?
- Now Playing7minWhen Men Wore High Heels
- Now Playing12minWhy Doesn't the US Have Paid Parental Leave?
- Now Playing10minWhat is Cultural Appropriation?
- Now Playing8minWhy Do Women Give Birth Lying Down?
Two Cents
- 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
- Now Playing6minHow Do You Actually Buy A House?
- Now Playing7minIs the Stock Market Just a Big Casino?
- Now Playing5minBudgeting Basics
- Now Playing6minDoes Wealth Make You Meaner?
- Now Playing6minWhat the Heck Are Mutual Funds?
- Now Playing4minWhat is the DOW?
- Now Playing6minShould You Break Up With Your Big Bank?
- Now Playing6minThe Ugly Truth About Airline Miles
- Now Playing5minHow Do Your Tax Dollars Get Spent?
- Now Playing5minHow are credit scores calculated?
- Now Playing8min5 Strange Investor Crazes!
- Now Playing7minCan You Really Retire in Your 30s?
- Now Playing6minWhat Are The Most Lucrative Trades?
- Now Playing6minHacking Your Brain to Get Out Of Debt
- Now Playing6minMoving Without Spending a Fortune
- Now Playing6minWomen Financial Superpowers
Monstrum
- Now Playing10minHow a Children's Book Introduced Us To Our Inner Demons
- Now Playing17minThe Origins of the Zombie, from Haiti to the U.S.
- Now Playing10minEl Silbón: The Deadly Whistler of the Grasslands
- Now Playing10minSlender Man: How The Internet Created a Monster
- Now Playing13minMonster Plants and the Humans who Invent Them
- Now Playing12minWho Is This Japanese Yōkai That Is Obsessed With Your Butt?
- Now Playing9minKrampus: Origins of the Yuletide Monster
- Now Playing20minWhy George Romero Changed Zombies Forever
- Now Playing14minHero, Beast, or Both? The Complex Lore of the Centaur
- Now Playing10minA Giant Monster With a Giant Problem
- Now Playing9minThe Hidden Origins of Nixie, the Scariest Little Mermaid
- Now Playing18minUnlocking the Mystery of Loch Ness
- Now Playing12minHow Gargoyles Became Monsters
- Now Playing11minThe Macabre Origins of the Grim Reaper
- Now Playing11minWhy Has the Majestic Griffin Been Forgotten?
- Now Playing17minTrolls: Scandinavia's Malevolent, Magical Outcasts
- Now Playing11minIs Siren Head the Ultimate Modern Monster?
- Now Playing6minThe Original Headless Horseman
- Now Playing12minHave Humans Always Feared Sharks?
- Now Playing11minMapinguari: Fearsome Beast and Protector of the Amazon
Eons
- Now Playing13minThe Dinosaur Who Was Buried at Sea
- Now Playing6minHow Sex Became A Thing
- Now Playing9minHow Pterosaurs Got Their Wings
- Now Playing9minDarwin Missed An Example of Evolution Right Under His Nose
- Now Playing10minGiant Viruses Blur The Line Between Alive and Not
- Now Playing7minIs This The Oldest Dad In The Fossil Record?
- Now Playing7minThe Other Explosion You Should Know About
- Now Playing12minWhen We Took Over the World
- Now Playing10minWhen Pterosaurs Walked
- Now Playing9minWe Helped Make Mosquitoes A Problem
- Now Playing13minA Brief History of Geologic Time
- Now Playing8minHow the Chalicothere Split In Two
- Now Playing7minUntangling the Devil's Corkscrew
- Now Playing13minDid Raptorex Really Exist?
- Now Playing8minBeans & Bees (Not Bats) Gave Us Butterflies
- Now Playing11minThe Mystery Behind the Biggest Bears of All Time
- Now Playing10minWhen Crocs Thrived in the Seas
- Now Playing13minFrom the Fall of Dinos to the Rise of Humans
- Now Playing12minHow Sloths Went From the Seas to the Trees
- Now Playing8minWhat Happened to the World's Biggest Beaver?
Hot Mess
- Now Playing5minHow A Sticker Kept 3 Billion Tons of CO2 Out of The Air
- Now Playing9minHow to Talk About Climate Change
- Now Playing8minHow One Conservative Texas Town Went 100% Renewable
- Now Playing7minHow To Make Clothes Less Terrible for the Planet
- Now Playing6minCan We Get Solar Power To Everyone Who Wants It?
- Now Playing5minWhy Don't We Hear About the Ozone Hole Anymore?
- 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 Playing4minCould Space Mirrors Cool The Globe?
- Now Playing5minWhy We Confuse Weather and Climate
- Now Playing3minCould climate change make you allergic to meat?
- Now Playing4minCould Space Mirrors Cool The Globe?
- Now Playing6minWould Your Neighbors Save You From a Flooding Home?
- 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 Playing5minWhat Can You Actually Do About Climate Change?
- Now Playing5minWhat's actually the worst greenhouse gas?
Space Time
- Now Playing11minWhy Quasars are so Awesome
- Now Playing12minWhat Survives Inside A Black Hole?
- Now Playing11min5 REAL Possibilities for Interstellar Travel
- Now Playing11minWe Are Star Stuff
- Now Playing11minHow Asteroid Mining Will Save Earth
- Now Playing13minDid Time Start at the Big Bang?
- Now Playing10minThe One-Electron Universe
- Now Playing13minThe Real Star Wars
- Now Playing8minIs The Alcubierre Warp Drive Possible?
- Now Playing10minIs Quantum Tunneling Faster than Light?
- Now Playing11minIs Gravity An Illusion?
- Now Playing12minThe Black Hole Information Paradox
- Now Playing9minGeneral Relativity & Curved Spacetime Explained!
- Now Playing8minDoes Dark Matter BREAK Physics?
- Now Playing10minThe Vacuum Catastrophe
- Now Playing6minS2: The Future of Gravitational Waves
- Now Playing9minBlack Hole Swarms
- Now Playing11minThe Geometry of Causality
- Now Playing18minAre Many Worlds & Pilot Wave The Same Theory?
- Now Playing11minAre You a Boltzmann Brain?
Beat Making Lab
- 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 Playing3minExclusive Zenga (Music Video) by Flamme Kapaya
- Now Playing3minBeat Making Challenge #2: Kora Riddim
- Now Playing3minFemale Hip Hop Crew Makes Beats in Senegal
- 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?
Infinite Series
- Now Playing9minAssociahedra: The Shapes of Multiplication
- Now Playing14minTopology Riddles | Infinite Series
- Now Playing8minAre Prime Numbers Made Up?
- Now Playing14minMaking Probability Mathematical
- Now Playing9minProving Brouwer's Fixed Point Theorem
- Now Playing13minNetwork Mathematics and Rival Factions | Infinite Series
- Now Playing11minTopology vs "a" Topology
- Now Playing11minVoting Systems and the Condorcet Paradox
- Now Playing12minProving Pick's Theorem
- Now Playing10minUnraveling DNA with Rational Tangles
- Now Playing10minThe Mathematics of Diffie-Hellman Key Exchange
- Now Playing9minCan You Solve the Poison Wine Challenge?
- Now Playing11minCan We Hear Shapes?
- Now Playing11minWhat are Numbers Made of?
- Now Playing14minWhy Computers are Bad at Algebra
- Now Playing14minInfinite Chess
- Now Playing11minCan We Hear Shapes?
- Now Playing14minCan We Combine pi & e to Make a Rational Number?
- Now Playing12minHow Infinity Explains the Finite
- Now Playing8minThe Multiplication Multiverse
Idea Channel
- Now Playing4minFrom Sherlock Holmes to 50 Shades of Grey
- Now Playing6minAre Virtual Video Game Economies Becoming Real?
- Now Playing5minAre Memes and Internet Culture Creating a Singularity?
- Now Playing5minIs Homestuck the Ulysses of the Internet?
- Now Playing5minDo We Want the World to End?
- Now Playing5minIs Dubstep the New Musical Avant-Garde?
- Now Playing8minIs Buying Call of Duty a Moral Choice?
- Now Playing5minWill Space Travel Save Us All?
- Now Playing8minWhy Do We Love Zombies?
- Now Playing5minNicolas Cage, Taoism, and YOLO
- Now Playing5minIs Dubstep the New Musical Avant-Garde?
- Now Playing4minIs Instagram Revolutionizing Photography?
- Now Playing8minIs Sad Music Actually Sad?
- Now Playing3minAre Holograms Nostalgia or a New Form of Art?
- Now Playing3minAre Holograms Nostalgia or a New Form of Art?
- Now Playing6minIs Doctor Who a Religion?
- Now Playing9minDoes Math Really Exist?
- Now Playing3minSuper Mario Brothers as Surrealist Art?
- Now Playing6minIs Futurama the Best Argument Against Transhumanism?
- Now Playing6minAre Virtual Video Game Economies Becoming Real?