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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 Playing14minWhy This Mexican Genre Is Growing As Fast As K-Pop
- 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?
It's Okay to Be Smart
- Now Playing6minHow To Hit A Fastball (According To Science!!!)
- Now Playing2minWhy Are There Still Monkeys? - 12 Days of Evolution #10
- Now Playing5minThe Only Animal That Weeps
- Now Playing6minDNA Doesn't Look Like What You Think!
- Now Playing6minThe Science of Beer
- Now Playing7minWhich Life Form REALLY Dominates Earth?
- Now Playing5minHow Much Plastic is in the Ocean?
- Now Playing6minWhat's the Deadliest Animal in the World?
- Now Playing4minSpace Sounds
- Now Playing5minBats: Guardians of the Night
- Now Playing3minWhy Do We Go to Space?
- Now Playing8min20 MILLION Year-Old Spider!! Unweaving Spider Silk
- Now Playing4minPutting Hurricane Harvey In Perspective
- Now Playing9minCan You Bend Light Like This?
- Now Playing10minCould You Be a Chimera?
- Now Playing7minIs Height All in Our Genes?
- Now Playing7minEinstein Was Right: Gravitational Waves Edition
- Now Playing11minThe Dinosaur On Your Thanksgiving Table
- Now Playing5minThe Superb Owl!
- Now Playing5minDo You Really Have Two Brains?
Origin of Everything
- Now Playing8minWhy Do People Have Pets?
- Now Playing11minWhy Do We Have Private Prisons?
- Now Playing8minWhen DId Marriage Become about Love?
- Now Playing7minWhy Do We Say "Asian American" Not "Oriental"?
- Now Playing8minWhy Was Crossdressing Illegal?
- Now Playing8minWhy Do Women Give Birth Lying Down?
- Now Playing12minWhy Do Schools Teach Sex Education?
- Now Playing7minHow did Makeup, WWII, & Communism Create U.S. Healthcare?
- Now Playing7minHow Columbus Invented Cannibals
- Now Playing8minWhy is there a North and South Korea?
- Now Playing10minWhy was Pink for Boys and Blue for Girls?
- Now Playing7minHow Your Rubber Ducky Explains Colonialism
- Now Playing10minIs Breakfast the Most Important Meal?
- Now Playing7minHistory of the Word "Gay"
- Now Playing7minIs Poisoned Halloween Candy a Myth?
- Now Playing10minHow Did Martin Luther King Jr. Get a Holiday?
- Now Playing8minWhy Do Women Give Birth Lying Down?
- Now Playing10minWhat is Cultural Appropriation?
- Now Playing12minWhy Doesn't the US Have Paid Parental Leave?
- Now Playing7minWhen Men Wore High Heels
Two Cents
- Now Playing5minHow Cars Can Keep You Poor
- Now Playing6minMoving Without Spending a Fortune
- Now Playing6minWomen Financial Superpowers
- Now Playing6minWhat Are The Most Lucrative Trades?
- Now Playing7minCan You Really Retire in Your 30s?
- Now Playing6minHacking Your Brain to Get Out Of Debt
- Now Playing7minIs It Even POSSIBLE to Save for Retirement?
- Now Playing6minDo I Need To Buy A House?
- Now Playing7minLove and Money
- Now Playing5minHow Do Your Tax Dollars Get Spent?
- Now Playing8min5 Strange Investor Crazes!
- Now Playing5minHow are credit scores calculated?
- Now Playing5minBudgeting Basics
- Now Playing7minIs the Stock Market Just a Big Casino?
- Now Playing6minShould You Break Up With Your Big Bank?
- Now Playing6minThe Ugly Truth About Airline Miles
- Now Playing4minWhat is the DOW?
- Now Playing6minWhat the Heck Are Mutual Funds?
- Now Playing6minDoes Wealth Make You Meaner?
- Now Playing8minAre "Free" Video Games Really Free?
Monstrum
- Now Playing17minTrolls: Scandinavia's Malevolent, Magical Outcasts
- Now Playing6minThe Original Headless Horseman
- Now Playing11minIs Siren Head the Ultimate Modern Monster?
- 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 Playing9minKrampus: Origins of the Yuletide Monster
- Now Playing20minWhy George Romero Changed Zombies Forever
- Now Playing10minA Giant Monster With a Giant Problem
- Now Playing14minHero, Beast, or Both? The Complex Lore of the Centaur
- Now Playing10minHow a Children's Book Introduced Us To Our Inner Demons
- Now Playing10minSlender Man: How The Internet Created a Monster
- Now Playing10minEl Silbón: The Deadly Whistler of the Grasslands
- Now Playing17minThe Origins of the Zombie, from Haiti to the U.S.
- Now Playing13minMonster Plants and the Humans who Invent Them
- Now Playing12minWho Is This Japanese Yōkai That Is Obsessed With Your Butt?
- Now Playing7minAre White Walkers Really Nordic Zombies?
- Now Playing14minThe Untold Secrets of Pokémon's Monster Mythology
Eons
- Now Playing9minHow the Turtle Got Its Shell
- Now Playing11minWhen the Synapsids Struck Back
- Now Playing10minYou're Living On An Ant Planet
- Now Playing9minWhat a Dinosaur Looks Like Under a Microscope
- Now Playing10minThe Missing Link That Wasn't
- Now Playing8minWe Were Wrong About The Dodo
- Now Playing9minThe Island of the Last Surviving Mammoths
- Now Playing8minPrimates vs Snakes (An Evolutionary Arms Race)
- Now Playing8minWhen the Sahara Was Green
- Now Playing9minWhen Plants Doubled Their DNA
- Now Playing10minHow Whale Evolution Kind Of Sucked
- Now Playing8minThe Extinction That Never Happened
- Now Playing10minWhen Fish Wore Armor
- Now Playing12minWhen We Tamed Fire
- Now Playing11minWhat Happened to the World's Greatest Ape?
- Now Playing10minWhy The Giraffe Got Its Neck
- Now Playing10minWhen Giant Amphibians Reigned
- Now Playing9minWhen Fish First Breathed Air
- Now Playing13minWhy Is It So Hard to Tell the Sex of a Dinosaur?
- Now Playing6minWhat Colors Were Dinosaurs?
Hot Mess
- Now Playing5minCan Farms and Forests Coexist?
- Now Playing4minWhy Are Hurricanes Getting Stronger?
- Now Playing6minWill Big Oil Have To Pay Up Like Big Tobacco?
- Now Playing5minWhat's actually the worst greenhouse gas?
- Now Playing8minHow One Conservative Texas Town Went 100% Renewable
- Now Playing5minWhat Happened to Nuclear Power?
- Now Playing4minHow Much Energy Does the Internet Use?
- Now Playing12minOur Food System is Rigged feat. Sheril Kirshenbaum
- Now Playing13minThe Rise of Climate Fiction feat. Lindsay Ellis & Amy Brady
- Now Playing6minCoral Reefs Are Dying. But They Don't Have To.
- Now Playing11minClimate Change is Too Big for our Brains feat. Mike Rugnetta
- Now Playing6minWould Your Neighbors Save You From a Flooding Home?
- Now Playing5minWhat Happened to Nuclear Power?
- Now Playing3minCould climate change make you allergic to meat?
- Now Playing7minWhat's The Best Car For The Climate?
- Now Playing5minWhy Climate Change is Unjust
- Now Playing4minHow Much Energy Does the Internet Use?
- Now Playing6minCoral Reefs Are Dying. But They Don't Have To.
- Now Playing5minWhy We Confuse Weather and Climate
- Now Playing10minFeeling Guilty About Climate Change feat. Hank Green
Space Time
- Now Playing12minWhat's On The Other Side Of A Black Hole?
- Now Playing13minHow Will the Universe End?
- Now Playing11minNo Dark Matter = Proof of Dark Matter?
- Now Playing14minGamma-Ray Bursts: Crash Course Astronomy #40
- Now Playing3minThe Leap Second Explained
- Now Playing12minReversing Entropy with Maxwell's Demon
- Now Playing11minSupervoids vs Colliding Universes!
- Now Playing8minAbsolute Cold
- Now Playing10minS2: The Strange Universe of Gravitational Lensing
- Now Playing14minWhat If Physics IS Not Describing Reality?
- Now Playing14min'Oumuamua Is Not Aliens
- Now Playing10minThe Death of the Sun
- Now Playing14minSecrets of the Cosmic Microwave Background
- Now Playing14minOur Antimatter, Mirrored, Time-Reversed Universe
- Now Playing11minBreaking The Heisenberg Uncertainty Principle
- Now Playing11minWe Are Star Stuff
- Now Playing13minPilot Wave Theory and Quantum Realism
- Now Playing12minQuantum Invariance & The Origin of The Standard Model
- Now Playing10minLife on Europa?
- Now Playing11minStar Clusters: Crash Course Astronomy #35
Beat Making Lab
- Now Playing4minCho Cho Cho (Music Video) filmed in Goma, Congo
- Now Playing2minWalshy Fire [of Major Lazer] Wants Your Riddims
- Now Playing3minPanama: Meet the Kids Behind the Beats
- Now Playing3minBeat Making Challenge #1: Accordion Trap
- Now Playing5minBehind the Beat: Portobelo
- Now Playing2minWhat's In the Backpack?
- Now Playing2minMashup: National Anthems
- Now Playing10minHeartbeats of Fiji
- Now Playing3minGet Your Drums Right
- Now Playing2minField Trip: Prison Beats
- Now Playing3minSampling w/ Flip Flops and Ski Beatz
- Now Playing4minPortobelo (music video)
- Now Playing3minBehind The Beat: First Beat Making Lab (2011)
- Now Playing4minTrapped In Paradise
- Now Playing2minHealth Worker Beat
- 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 Playing3minEpisode 1: Goma, Congo
- Now Playing4minDiablos (music video)
Infinite Series
- Now Playing13minThe Mathematics of Quantum Computers
- Now Playing14minBuilding an Infinite Bridge
- Now Playing8minA Breakthrough in Higher Dimensional Spheres
- Now Playing14minCan a Chess Piece Explain Markov Chains?
- Now Playing14minSolving the Wolverine Problem with Graph Coloring
- Now Playing10minWhat Does It Mean to Be a Number? (The Peano Axioms)
- Now Playing11minThe Geometry of SET
- Now Playing15minArrow's Impossibility Theorem
- Now Playing11minTopology vs "a" Topology
- Now Playing10minThe Mathematics of Diffie-Hellman Key Exchange
- Now Playing9minBeyond the Golden Ratio
- Now Playing17minHacking at Quantum Speed with Shor's Algorithm
- Now Playing17minSplitting Rent with Triangles
- Now Playing14minWhy Computers are Bad at Algebra
- Now Playing11minSingularities Explained
- Now Playing12minThe Honeycombs of 4-Dimensional Bees ft. Joe Hanson
- Now Playing10minThe Assassin Puzzle
- Now Playing14minHow Big are All Infinities Combined? (Cantor's Paradox)
- Now Playing9minThis Video was Not Encrypted with RSA
- Now Playing13minWhat is a Random Walk?
Idea Channel
- Now Playing4minAre Mashups the End of Music Genres?
- Now Playing5minIs William Gibson A Modern Day Oracle?
- Now Playing4minAre LOLCats and Internet Memes Art?
- Now Playing4minRussian Meteorites and Surveillance Culture
- Now Playing7minHow are Justin Bieber, Franz Liszt and Jerusalem Connected?
- Now Playing5minAre Olympic Competitors Geniuses?
- 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 Playing8minIs a Tagged Instagram More Than Just a Photo?
- Now Playing9minWill Kickstarter Replace Hollywood?
- Now Playing5minNicolas Cage, Taoism, and YOLO
- Now Playing3minIs the Web Browser Replacing the Art Gallery?
- Now Playing4minFrom Sherlock Holmes to 50 Shades of Grey
- Now Playing4minHas the Microsoft Kinect revolutionized art?
- Now Playing4minIs Twitter the Newest Form of Literature?
- Now Playing5minHow will the Animated GIF affect the Presidential Election?
- Now Playing9minIs the Universe a Computer?
- Now Playing5minAre Olympic Competitors Geniuses?
- Now Playing5minIs CSS and Website Design a Fashion Statement?