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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 Playing8minWhy Is Blue So Rare In Nature?
- Now Playing5minWhy Music Moves Us
- Now Playing6minWhat is Luck?
- Now Playing9minIs This A NEW SPECIES?!
- Now Playing4minHow to See Time Travel!!!
- Now Playing3minWhy I PBS
- Now Playing6minThe Largest River On Earth Is In The Sky
- Now Playing5minHow Many Trees Are There?
- Now Playing6minAttack of the Cosmic Space Junk!
- Now Playing4minThe Ruin and Rise of Monterey Bay
- Now Playing13minDoes Someone Else Have Your Face?
- Now Playing6minThe Delicious Science of CHEESE!
- Now Playing12minUsing Gene Editing To Repaint Butterfly Wings
- Now Playing3minDoes Evolution Have a Point? 12 Days of Evolution #12
- Now Playing6minCRISPR and the Future of Human Evolution
- Now Playing6minWhy It Is What Time It Is (The History of Time)
- Now Playing4minHow Poop Shapes the World
- Now Playing8minThe Science of Game of Thrones
- Now Playing4minWhy Seasons Make No Sense
- Now Playing2minWhat Is Evolution, Anyway? - 12 Days of Evolution #1
Origin of Everything
- Now Playing10minHow Did Makeup Ads Go From Style to Science?
- Now Playing9minWhy Do We Drink Milk in School?
- Now Playing9minWhat If Islam Conquered Europe?
- Now Playing11minWhat is Racial Passing?
- Now Playing10minWhy Is There a Minimum Wage?
- Now Playing5minWhat Was Jesus' Real Name?
- Now Playing7minIs Poisoned Halloween Candy a Myth?
- Now Playing7minHow Your Rubber Ducky Explains Colonialism
- Now Playing7minThe True Origin of Killer Clowns
- Now Playing12minWhy Do Schools Teach Sex Education?
- Now Playing9minIs the Rosa Parks Story True?
- Now Playing7minIs Poisoned Halloween Candy a Myth?
- Now Playing8minWhy Do Kids Have Their Own Bedrooms?
- Now Playing8minWhy Do Women Shave Their Legs?
- Now Playing10minHow WWII Created Godzilla & Mecha Robots
- Now Playing11minWhy Do So Many Religions Have Headwear?
- 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?
Two Cents
- Now Playing6minWomen Financial Superpowers
- Now Playing6minMoving Without Spending a Fortune
- Now Playing5minHow Cars Can Keep You Poor
- Now Playing6minHacking Your Brain to Get Out Of Debt
- Now Playing6minWhat Are The Most Lucrative Trades?
- Now Playing7minCan You Really Retire in Your 30s?
- Now Playing6minDo I Need To Buy A House?
- Now Playing7minIs It Even POSSIBLE to Save for Retirement?
- Now Playing7minLove and Money
- Now Playing5minHow Do Your Tax Dollars Get Spent?
- Now Playing5minHow are credit scores calculated?
- Now Playing8min5 Strange Investor Crazes!
- Now Playing5minBudgeting Basics
- Now Playing7minIs the Stock Market Just a Big Casino?
- Now Playing4minWhat is the DOW?
- Now Playing6minThe Ugly Truth About Airline Miles
- Now Playing6minShould You Break Up With Your Big Bank?
- Now Playing6minWhat the Heck Are Mutual Funds?
- Now Playing6minDoes Wealth Make You Meaner?
- Now Playing8minAre "Free" Video Games Really Free?
Monstrum
- Now Playing8minBunyip: Australia's Mysterious Amphibian Monster
- Now Playing7minEl Chupacabras, a Modern Mystery
- Now Playing10minWhy the Dragon is Central to Chinese Culture
- Now Playing15minEgyptian Mummies: From Sacred Vessels to Scary Undead
- Now Playing7minWhat Dragons Say About Us
- Now Playing31minThe Werewolf's Modern Metamorphosis
- Now Playing12minBeyond the Supernatural Horror of the Nishi Daak Ghost
- Now Playing7minAre White Walkers Really Nordic Zombies?
- Now Playing14minThe Untold Secrets of Pokémon's Monster Mythology
- Now Playing7minRelease the Kraken!
- Now Playing12minTaotie: The Mystery of Chinese Mythology's Famous Glutton
- Now Playing12minDon't Let Them In! The Urban Legends of Black-Eyed Children
- Now Playing13minFire Cat or Fire Cart? The History of Japan's Kasha
- Now Playing13minUncovering the Enigma: Sasquatch Sightings
- Now Playing7minKasagonagá: The Cute, Kind Monster We All Need Right Now
- Now Playing11minMari Lwyd: The Skeleton Horse's Deep Past with Christmas
- Now Playing12minHave Humans Always Feared Sharks?
- Now Playing11minMapinguari: Fearsome Beast and Protector of the Amazon
- Now Playing17minAlien Abduction and UFOs: Why Are Grays So Common?
- Now Playing9minAdze: the Shapeshifting Firefly from West Africa
Eons
- Now Playing8minThe Traits That Spawned the Age of Mammals
- Now Playing10minWhy Triassic Animals Were Just the Weirdest
- Now Playing10minWhen Did We Stop Being Naked?
- Now Playing12minThat Time the Mediterranean Sea Disappeared
- Now Playing8minThe Weird, Watery Tale of Spinosaurus
- Now Playing10minHow Worm Holes Ended Wormworld
- Now Playing10minHow a Supervolcano Ignited an Evolutionary Debate
- Now Playing8minHow the Chalicothere Split In Two
- Now Playing10minWhen Camels Roamed North America
- Now Playing13minWhen We Met Other Human Species
- Now Playing9minThe Curious Case of the Cave Lion
- Now Playing6minLiving Fossils' Aren't Really a Thing
- Now Playing11minWhy Only Earth Has Fire
- Now Playing10minHow a Supervolcano Made the Cenozoic's Coolest Fossils
- Now Playing9minOur Bizarre, Possibly Venomous, Relative
- Now Playing9minThe Evolution of the Heart (A Love Story)
- Now Playing10minFAQs From Our First Year
- Now Playing8minWhere Are All The Squid Fossils?
- Now Playing7minUntangling the Devil's Corkscrew
- Now Playing8minThe Biggest Frog that Ever Lived
Hot Mess
- Now Playing6minWhat If We Burned All The World's Fossil Fuels?
- Now Playing6minHow To Suck Carbon Dioxide Out of the Sky
- Now Playing10minFeeling Guilty About Climate Change feat. Hank Green
- Now Playing7minWhat's The Best Car For The Climate?
- 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 Playing6minCan We Get Solar Power To Everyone Who Wants It?
- Now Playing6minWhat If We Burned All The World's Fossil Fuels?
- Now Playing5minWho Should Pay To Fix Climate Change?
- Now Playing5minClimate change will push millions out. Where will they go?
- Now Playing5minWhy Don't We Hear About the Ozone Hole Anymore?
- Now Playing7minHow To Make Clothes Less Terrible for the Planet
- 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 Playing13minWhite Holes
- Now Playing16minHow Can Matter Be Both Liquid And Gas?
- Now Playing16minFermions Vs. Bosons Explained with Statistical Mechanics!
- Now Playing13minThe Real Star Wars
- Now Playing10minScientists Have Detected the First Stars
- Now Playing11minHow to Build a Blackhole
- Now Playing12minAre the Fundamental Constants Changing?
- Now Playing11minThe Physics of Life (ft. It's Okay to be Smart & PBS Eons!)
- Now Playing11minWhen Quasars When Quasars Collide STJC
- Now Playing12minHawking Radiation
- Now Playing14minHave They Seen Us?
- Now Playing13minQuantum Theory's Most Incredible Prediction
- Now Playing8minThe First Humans on Mars
- Now Playing16minThe Edge of an Infinite Universe
- Now Playing8minIs the Moon in Majora's Mask a Black Hole?
- Now Playing14minWhat Happens If A Black Hole Hits Earth?
- Now Playing11minHow Time Becomes Space Inside a Black Hole
- Now Playing13minHow Does Gravity Escape A Black Hole?
- Now Playing11minThe Fate of the First Stars
- Now Playing12minLife in the Universe: Crash Course Astronomy #46
Beat Making Lab
- Now Playing2minWalshy Fire [of Major Lazer] Wants Your Riddims
- Now Playing4minCho Cho Cho (Music Video) filmed in Goma, Congo
- Now Playing2minMashup: National Anthems
- Now Playing10minHeartbeats of Fiji
- Now Playing3minGet Your Drums Right
- Now Playing2minField Trip: Prison Beats
- Now Playing3minPanama: Meet the Kids Behind the Beats
- Now Playing3minBeat Making Challenge #1: Accordion Trap
- Now Playing2minWhat's In the Backpack?
- Now Playing5minBehind the Beat: Portobelo
- Now Playing4minTrapped In Paradise
- Now Playing2minHealth Worker Beat
- Now Playing3minSampling w/ Flip Flops and Ski Beatz
- Now Playing4minPortobelo (music video)
- Now Playing3minBehind The Beat: First Beat Making Lab (2011)
- Now Playing3min#FijiChallenge w/ Walshy Fire of Major Lazer
- Now Playing3minProf. Angel Sound Prison Beats Interview
- Now Playing3minBeat Making Challenge #2: Kora Riddim
- Now Playing3minExclusive Zenga (Music Video) by Flamme Kapaya
- Now Playing3minFemale Hip Hop Crew Makes Beats in Senegal
Infinite Series
- Now Playing14minInfinite Chess
- Now Playing11minWhat are Numbers Made of?
- Now Playing14minWhy Computers are Bad at Algebra
- Now Playing11minCan We Hear Shapes?
- Now Playing10minInstant Insanity Puzzle
- Now Playing14minSolving the Wolverine Problem with Graph Coloring
- Now Playing8minA Breakthrough in Higher Dimensional Spheres
- Now Playing12minHow Infinity Explains the Finite
- Now Playing8minThe Multiplication Multiverse
- Now Playing11minCan We Hear Shapes?
- Now Playing14minCan We Combine pi & e to Make a Rational Number?
- Now Playing9minProving Brouwer's Fixed Point Theorem
- Now Playing14minMaking Probability Mathematical
- Now Playing8minAre Prime Numbers Made Up?
- Now Playing14minTopology Riddles | Infinite Series
- Now Playing9minAssociahedra: The Shapes of Multiplication
- Now Playing9minCan You Solve the Poison Wine Challenge?
- Now Playing10minThe Mathematics of Diffie-Hellman Key Exchange
- Now Playing12minProving Pick's Theorem
- Now Playing11minVoting Systems and the Condorcet Paradox
Idea Channel
- Now Playing6minIs Futurama the Best Argument Against Transhumanism?
- Now Playing3minSuper Mario Brothers as Surrealist Art?
- Now Playing6minAre Virtual Video Game Economies Becoming Real?
- Now Playing8minIs Sad Music Actually Sad?
- Now Playing6minIs Doctor Who a Religion?
- Now Playing9minDoes Math Really Exist?
- Now Playing3minAre Holograms Nostalgia or a New Form of Art?
- Now Playing3minAre Holograms Nostalgia or a New Form of Art?
- Now Playing8minIs Developing Artificial Intelligence (AI) Ethical?
- Now Playing3minIs the Web Browser Replacing the Art Gallery?
- Now Playing5minAre You a Hipster?
- Now Playing4minIs Twitter the Newest Form of Literature?
- Now Playing9minIs Community a Postmodern Masterpiece?
- Now Playing8minIs Piracy Helping Game of Thrones?
- Now Playing3minWhat Makes a Pop Star Authentic?
- Now Playing4minThe Bronies Phenomenon
- Now Playing6minAre MP3s & Vinyl Better than Live Music?
- Now Playing7minCan Dungeons & Dragons Make You Confident & Successful?
- Now Playing4minHas the Microsoft Kinect revolutionized art?
- Now Playing5minIs Facebook Changing Our Identity?