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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 Playing14minOur Understanding of Floods is ALL Wrong
- Now Playing22minCan AI Help Us Talk to Whales?
- Now Playing16minWhy Is The World Rushing Back To The Moon?
- 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?
It's Okay to Be Smart
- Now Playing4minWhat Color Is The Moon?
- Now Playing6minHow An Igloo Keeps You Warm
- Now Playing17minHow Blind People See With Sound
- Now Playing6minWhat Has New Horizons Taught Us About Pluto?
- Now Playing8minIs Space A Thing?
- Now Playing8minThe Deadliest Flu Season in History?
- Now Playing5min%$?# Allergies!
- Now Playing11minApollo's Most Important Discovery: Inside NASA's Moon Rock V
- Now Playing5minWhy Does The Earth Have Layers?
- Now Playing7minWhy People Don't Believe In Climate Science
- Now Playing14minThis Face Changes the Human Story
- Now Playing5minThe Small Problem With Shrinking Ourselves
- Now Playing5minThe Small Problem With Shrinking Ourselves
- Now Playing4minThere Was No First Human
- Now Playing8minThe Science of BBQ!!!
- Now Playing3minWhy is the sky any color?
- Now Playing4minGoats!
- Now Playing6minRelationship Advice from the Animal Kingdom
- Now Playing2minCan Evolution Create Information? - 12 Days of Evolution #9
- Now Playing4minThe Romantic Lure of Moonlight
Origin of Everything
- Now Playing10minHow Did Martin Luther King Jr. Get a Holiday?
- Now Playing9minDoes the Rorschach Inkblot Test Work?
- Now Playing9minCan Tattoos Be Taboo?
- Now Playing11minWhy Does the Government Pay for Art?
- Now Playing10minWhy Does the Government Need to Know My Race?
- Now Playing9minCan Tattoos Be Taboo?
- Now Playing7minWhy are 18 Year Olds Considered Adults?
- Now Playing11minModern Warfare and Alien Invasions
- Now Playing8minWhere Does the #Hashtag Symbol Come From?
- Now Playing8minWhy Do Kids Have Their Own Bedrooms?
- Now Playing10minWhy Do We Have Hobbies?
- Now Playing10min6 Weird Facts About the History of Birth Control
- Now Playing7minWhy Are There So Few Women in Computer Science?
- Now Playing8minWhy Do We Wash Our Hands After Going to the Bathroom?
- Now Playing6minWhy Do We Have Middle Names?
- Now Playing10minHow Did Makeup Ads Go From Style to Science?
- Now Playing10minDo Standardized Tests Do More Harm Than Good?
- Now Playing11minWhy Do We Have Private Prisons?
- Now Playing8minWhere does the Nuclear Family Come From?
- Now Playing10minThe Origin of Race in the USA
Two Cents
- Now Playing6minDo I Need To Buy A House?
- Now Playing7minIs It Even POSSIBLE to Save for Retirement?
- Now Playing7minLove and Money
- Now Playing6minMoving Without Spending a Fortune
- Now Playing6minWomen Financial Superpowers
- Now Playing5minHow Cars Can Keep You Poor
- Now Playing6minHacking Your Brain to Get Out Of Debt
- Now Playing7minCan You Really Retire in Your 30s?
- Now Playing6minWhat Are The Most Lucrative Trades?
- Now Playing5minHow are credit scores calculated?
- Now Playing8min5 Strange Investor Crazes!
- Now Playing5minHow Do Your Tax Dollars Get Spent?
- Now Playing4minWhat is the DOW?
- Now Playing6minThe Ugly Truth About Airline Miles
- Now Playing6minShould You Break Up With Your Big Bank?
- Now Playing6minDoes Wealth Make You Meaner?
- Now Playing6minWhat the Heck Are Mutual Funds?
- Now Playing5minBudgeting Basics
- Now Playing7minIs the Stock Market Just a Big Casino?
- Now Playing6minHow Do You Actually Buy A House?
Monstrum
- Now Playing12minAre Cyborgs Really Monsters?
- Now Playing12minWhat Hellhounds Reveal about Humans' Oldest Companion
- Now Playing13minUnicorns: Magical Icons or Violent Beasts?
- Now Playing10minTikbálang: The Filipino Nightmare Shapeshifter
- Now Playing9minPost-Dracula Vampires: From Anne Rice to Twilight
- Now Playing9minAdze: the Shapeshifting Firefly from West Africa
- Now Playing17minAlien Abduction and UFOs: Why Are Grays So Common?
- Now Playing26minThe Killer Origins of the Werewolf
- Now Playing11minMapinguari: Fearsome Beast and Protector of the Amazon
- Now Playing12minHave Humans Always Feared Sharks?
- Now Playing13minFire Cat or Fire Cart? The History of Japan's Kasha
- Now Playing11minMari Lwyd: The Skeleton Horse's Deep Past with Christmas
- Now Playing13minUncovering the Enigma: Sasquatch Sightings
- Now Playing7minKasagonagá: The Cute, Kind Monster We All Need Right Now
- Now Playing7minRelease the Kraken!
- Now Playing7minAre White Walkers Really Nordic Zombies?
- Now Playing14minThe Untold Secrets of Pokémon's Monster Mythology
- Now Playing12minTaotie: The Mystery of Chinese Mythology's Famous Glutton
- Now Playing12minDon't Let Them In! The Urban Legends of Black-Eyed Children
- Now Playing15minEgyptian Mummies: From Sacred Vessels to Scary Undead
Eons
- Now Playing8minWhy Sour May Be The Oldest Taste
- Now Playing8minThe Risky Paleo Diets of Our Ancestors
- Now Playing8minWhen Giant Millipedes Reigned
- Now Playing10minWhen Our Culture Changed Our DNA
- Now Playing10minWhen Giant Amphibians Reigned
- Now Playing6minWhen The Earth Was Purple
- Now Playing12minHow Sloths Went From the Seas to the Trees
- Now Playing10minOur Most Mysterious Extinct Cousins
- Now Playing10minNautiloids Thrived For 500 Million Years Until They Appeared
- Now Playing9minThe Raptor That Made Us Rethink Dinosaurs
- Now Playing5minWhen Did the First Flower Bloom?
- Now Playing12minWhen We Took Over the World
- Now Playing12minWhy Male Mammoths Lost the Game (w/ TierZoo!)
- Now Playing10minWhen Hobbits Were Real
- Now Playing7minThe Trouble With Trilobites
- Now Playing12minWhen Giant Scorpions Swarmed the Seas
- Now Playing11minWhere Did Water Come From?
- Now Playing8minInside the Dinosaur Library
- Now Playing10minWhen We First Made Tools
- Now Playing7minWhen Giant Fungi Ruled
Hot Mess
- Now Playing6minWhat If We Burned All The World's Fossil Fuels?
- Now Playing6minHow To Suck Carbon Dioxide Out of the Sky
- Now Playing7minWhat's The Best Car For The Climate?
- Now Playing10minFeeling Guilty About Climate Change feat. Hank Green
- Now Playing6minWhat Indigenous Communities Teach Us About Climate Change
- Now Playing5minWhy Climate Change is Unjust
- Now Playing10minAre You Scared Enough? feat. David Wallace-Wells
- Now Playing10minFeeling Guilty About Climate Change feat. Hank Green
- Now Playing6minWill Big Oil Have To Pay Up Like Big Tobacco?
- Now Playing6minWhat If We Burned All The World's Fossil Fuels?
- Now Playing6minCan We Get Solar Power To Everyone Who Wants It?
- Now Playing5minClimate change will push millions out. Where will they go?
- Now Playing5minWho Should Pay To Fix Climate Change?
- Now Playing7minHow To Make Clothes Less Terrible for the Planet
- Now Playing5minWhy Don't We Hear About the Ozone Hole Anymore?
- Now Playing5minWho Should Pay To Fix Climate Change?
- Now Playing6minHow To Suck Carbon Dioxide Out of the Sky
- Now Playing6minCoral Reefs Are Dying. But They Don't Have To.
- Now Playing13minThe Rise of Climate Fiction feat. Lindsay Ellis & Amy Brady
- Now Playing12minOur Food System is Rigged feat. Sheril Kirshenbaum
Space Time
- Now Playing6minWhat Planet Is Super Mario World?
- Now Playing13minHow Will the Universe End?
- Now Playing12minLife in the Universe: Crash Course Astronomy #46
- Now Playing11minThe Fate of the First Stars
- Now Playing13minHow Does Gravity Escape A Black Hole?
- Now Playing11minHow Time Becomes Space Inside a Black Hole
- Now Playing13minA Brief History of the Universe: Crash Course Astronomy #44
- Now Playing11minHow Time Becomes Space Inside a Black Hole
- Now Playing12minHawking Radiation
- Now Playing10minShould Space be Privatized?
- Now Playing7minShould We Colonize Venus Instead of Mars?
- Now Playing12minHow to See Black Holes + Kugelblitz Challenge Answer
- Now Playing14minThe Evolution of the Modern Milky Way Galaxy
- Now Playing12minAre the Fundamental Constants Changing?
- Now Playing11minHow to Build a Blackhole
- Now Playing11minThe Physics of Life (ft. It's Okay to be Smart & PBS Eons!)
- Now Playing16minHow Can Matter Be Both Liquid And Gas?
- Now Playing16minFermions Vs. Bosons Explained with Statistical Mechanics!
- Now Playing13minWhite Holes
- Now Playing10minScientists Have Detected the First Stars
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 Playing3minBeat Making Challenge #2: Kora Riddim
- Now Playing3minExclusive Zenga (Music Video) by Flamme Kapaya
- 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 Playing8minHow to Divide by "Zero"
- Now Playing10minThe Assassin Puzzle
- Now Playing9minHow Many Humans Have the Same Number of Body Hairs?
- 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 Playing15minDissecting Hypercubes with Pascal's Triangle
- Now Playing14minInfinite Chess
- Now Playing11minVoting Systems and the Condorcet Paradox
- Now Playing11minSingularities Explained
- Now Playing9minBeyond the Golden Ratio
- Now Playing15minArrow's Impossibility Theorem
- Now Playing9minA Hierarchy of Infinities
- Now Playing15minArrow's Impossibility Theorem
- Now Playing11minThe Geometry of SET
- Now Playing10minWhat Does It Mean to Be a Number? (The Peano Axioms)
- Now Playing14minSolving the Wolverine Problem with Graph Coloring
- Now Playing14minCan a Chess Piece Explain Markov Chains?
- Now Playing8minA Breakthrough in Higher Dimensional Spheres
Idea Channel
- Now Playing4minIs Instagram Revolutionizing Photography?
- Now Playing5minIs Dubstep the New Musical Avant-Garde?
- Now Playing8minWhy Do We Love Zombies?
- Now Playing5minNicolas Cage, Taoism, and YOLO
- Now Playing8minIs Buying Call of Duty a Moral Choice?
- Now Playing5minWill Space Travel Save Us All?
- Now Playing5minIs Homestuck the Ulysses of the Internet?
- Now Playing5minIs Dubstep the New Musical Avant-Garde?
- Now Playing5minDo We Want the World to End?
- Now Playing5minAre Memes and Internet Culture Creating a Singularity?
- Now Playing4minFrom Sherlock Holmes to 50 Shades of Grey
- Now Playing6minAre Virtual Video Game Economies Becoming Real?
- Now Playing4minThe Bronies Phenomenon
- Now Playing7minCan Dungeons & Dragons Make You Confident & Successful?
- Now Playing6minAre MP3s & Vinyl Better than Live Music?
- Now Playing6minWhat do MP3s and Magic Spells Have in Common?
- Now Playing5minIs Facebook Changing Our Identity?
- Now Playing4minHas the Microsoft Kinect revolutionized art?
- Now Playing4minIs Twitter the Newest Form of Literature?
- Now Playing9minIs Community a Postmodern Masterpiece?