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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 Playing13minWhat's The Universe's Strongest Particle Accelerator?
- Now Playing9minThe Surprising Power of Sex in Evolution
- Now Playing14minCan Black Holes Unify General Relativity & Quantum Mechanics?
- Now Playing11minHas Streaming Made It Harder to Find New Music You Love?
- Now Playing21minInterstellar Expansion WITHOUT Faster Than Light Travel
- Now Playing9minThe Second Time Sponges Took Over The World
- Now Playing12minIs This North American Sea Serpent Real or a Hoax?
- Now Playing13minComputers Can Predict When You're Going to Die... Here's How
- Now Playing10minHow Do You Preserve a Thousands Year Old Musical Style?
- Now Playing14minWhy This Mexican Genre Is Growing As Fast As K-Pop
It's Okay to Be Smart
- Now Playing5minHow Many Trees Are There?
- Now Playing6minThe Largest River On Earth Is In The Sky
- Now Playing13minDoes Someone Else Have Your Face?
- Now Playing6minAttack of the Cosmic Space Junk!
- Now Playing4minThe Ruin and Rise of Monterey Bay
- Now Playing6minThe Delicious Science of CHEESE!
- Now Playing12minUsing Gene Editing To Repaint Butterfly Wings
- Now Playing6minCRISPR and the Future of Human Evolution
- Now Playing3minDoes Evolution Have a Point? 12 Days of Evolution #12
- 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 Playing6minWhy Do We Cook?
- Now Playing5min5 Weird Involuntary Behaviors Explained!
- Now Playing3minWhy is the sky any color?
- Now Playing6minThe Surprising Origin of Thanksgiving Foods
- Now Playing6minPay Attention!
Origin of Everything
- Now Playing12minWhy Doesn't the US Have Paid Parental Leave?
- Now Playing7minWhen Men Wore High Heels
- Now Playing8minWhy Do We Get Grades in School?
- Now Playing10minWhy Does the Government Need to Know My Race?
- Now Playing10minWhat is Ethnicity?
- 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 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 Playing8minWhy Do People Have Pets?
- Now Playing11minWhy Do We Have Private Prisons?
- Now Playing8minWhen DId Marriage Become about Love?
Two Cents
- Now Playing6minHow to Ask for a Raise
- Now Playing7minWhat's The Real Cost of Dying?
- Now Playing7minShould I Invest In Cannabis Stocks?
- Now Playing7minWhy It's More Expensive To Be Poor
- Now Playing6minTop 5 Biggest Financial Scams
- Now Playing6minI'm Young & Healthy, Can I Skip Health Insurance?
- Now Playing9minHow Smart Entrepreneurs Think About PRICES!
- 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 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 Playing7minLove and Money
- Now Playing6minDo I Need To Buy A House?
- Now Playing7minIs It Even POSSIBLE to Save for Retirement?
- Now Playing6minHacking Your Brain to Get Out Of Debt
Monstrum
- Now Playing14minThe Evolution of Creepy Dolls
- Now Playing8minNuckelavee: Scotland's Skinless Evil Monstrosity
- Now Playing11minThe Fatal Song of the Sirens
- Now Playing12minWas Púca the Nightmare Bunny That Inspired Donnie Darko?
- Now Playing8minCreepy Clowns: The Horror Behind the Laughter
- Now Playing11minThe Original Urban Legend: Spring-Heeled Jack
- Now Playing6minRethinking Frankenstein's Monster
- 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 Playing13minThe SCP Foundation: Declassified
- 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 Playing12minIs This North American Sea Serpent Real or a Hoax?
- Now Playing10minYara-ma-yha-who: Australia's Regurgitating, Blood-Sucking Mo
- Now Playing10minPontianak: The Vampiric Ghost of Southeast Asia
- Now Playing10minThe Enchanting Fairies of Celtic Lore
Eons
- Now Playing12minCan We Get DNA From Fossils?
- Now Playing10minHow 7,000 Years of Epic Floods Changed the World
- Now Playing8minThat Time It Rained for Two Million Years
- Now Playing8minWhat Happened to the World's Greatest Ape?
- Now Playing8minThe Ghostly Origins of the Big Cats
- Now Playing10minWhen Fish Wore Armor
- Now Playing9minThe Fungi That Turned Ants Into Zombies
- Now Playing13minHow Evolution Works (And How We Figured It Out)
- Now Playing13minAn Illustrated History of Dinosaurs
- Now Playing11minHow a Mass Extinction Changed Our Brains
- Now Playing9minThe Invisible Barrier Keeping Two Worlds Apart
- Now Playing9minWhen Rodents Had Horns
- Now Playing10minThe Facts About Dinosaurs & Feathers
- Now Playing8minWhen Dinosaur Look-Alikes Ruled the Earth
- Now Playing6minThe Time Terror Birds Invaded
- Now Playing7minWhen Giant Deer Roamed Eurasia
- Now Playing8minHow Plate Tectonics Gave Us Seahorses
- Now Playing10minWhy The Paleo Diet Couldn't Save The Neanderthals
- Now Playing12minWhat Was the Ancestor of Everything?
- Now Playing11minWhy Megalodon (Definitely) Went Extinct
Hot Mess
- Now Playing5minClimate change will push millions out. Where will they go?
- Now Playing5minWho Should Pay To Fix Climate Change?
- Now Playing6minWhat If We Burned All The World's Fossil Fuels?
- Now Playing6minCan We Get Solar Power To Everyone Who Wants It?
- Now Playing6minWill Big Oil Have To Pay Up Like Big Tobacco?
- Now Playing6minHow To Suck Carbon Dioxide Out of the Sky
- 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 Playing7minWhat's The Best Car For The Climate?
- Now Playing10minFeeling Guilty About Climate Change feat. Hank Green
- Now Playing6minHow To Suck Carbon Dioxide Out of the Sky
- Now Playing6minWhat If We Burned All The World's Fossil Fuels?
- Now Playing10minFeeling Guilty About Climate Change feat. Hank Green
- Now Playing10minAre You Scared Enough? feat. David Wallace-Wells
- Now Playing5minWhy Climate Change is Unjust
- Now Playing6minWhat Indigenous Communities Teach Us About Climate Change
- 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.
Space Time
- Now Playing14minWhat Caused the Big Bang?
- Now Playing11minWhy Haven't We Found Alien Life?
- Now Playing16minThe New Science of Moon Formation
- Now Playing13minThe Cosmic Dark Ages
- Now Playing17minWhat If Black Holes Are Dark Energy?
- Now Playing9minIs There a Fifth Fundamental Force? + Quantum Eraser Answer
- Now Playing16minWhy String Theory is Wrong
- Now Playing7minHow to Signal Aliens
- Now Playing12minWill Constructor Theory REWRITE Physics?
- Now Playing16minCould We Terraform Mars?
- Now Playing12minThe Missing Mass Mystery
- Now Playing10minThe Oh My God Particle
- Now Playing12minReversing Entropy with Maxwell's Demon
- Now Playing10minThe Oh My God Particle
- Now Playing10minWhat Physics Teachers Get Wrong About Tides!
- Now Playing10minQuantum Vortices and Superconductivity + Challenge Answers
- Now Playing9minWhen Time Breaks Down
- Now Playing16minWhat Makes The Strong Force Strong?
- Now Playing15minHow Does The Nucleus Hold Together?
- Now Playing10minExtinction by Gamma-Ray Burst
Beat Making Lab
- Now Playing3min#FijiChallenge w/ Walshy Fire of Major Lazer
- Now Playing3minProf. Angel Sound Prison Beats Interview
- Now Playing3minFemale Hip Hop Crew Makes Beats in Senegal
- Now Playing3minExclusive Zenga (Music Video) by Flamme Kapaya
- Now Playing3minBeat Making Challenge #2: Kora Riddim
- Now Playing4minDiablos (music video)
- Now Playing3minEpisode 1: Goma, Congo
- Now Playing4minTrapped In Paradise
- Now Playing2minHealth Worker Beat
- Now Playing3minSampling w/ Flip Flops and Ski Beatz
- Now Playing3minBehind The Beat: First Beat Making Lab (2011)
- Now Playing4minPortobelo (music video)
- Now Playing10minHeartbeats of Fiji
- Now Playing2minMashup: National Anthems
- Now Playing2minField Trip: Prison Beats
- Now Playing3minGet Your Drums Right
- Now Playing3minPanama: Meet the Kids Behind the Beats
- Now Playing2minWhat's In the Backpack?
- Now Playing5minBehind the Beat: Portobelo
- Now Playing3minBeat Making Challenge #1: Accordion Trap
Infinite Series
- Now Playing10minInstant Insanity Puzzle
- Now Playing13minNetwork Mathematics and Rival Factions | Infinite Series
- Now Playing12minProving Pick's Theorem
- Now Playing11minWhat are Numbers Made of?
- Now Playing14minMaking Probability Mathematical
- Now Playing15minDissecting Hypercubes with Pascal's Triangle
- Now Playing17minSplitting Rent with Triangles
- Now Playing11minDefining Infinity
- Now Playing8minTelling Time on a Torus
- Now Playing9minAssociahedra: The Shapes of Multiplication
- Now Playing14minBuilding an Infinite Bridge
- Now Playing16minHow to Break Cryptography
- Now Playing11minThe Geometry of SET
- Now Playing14minHow Big are All Infinities Combined? (Cantor's Paradox)
- Now Playing14minKill the Mathematical Hydra
- Now Playing11minWhat was Fermat's "Marvelous" Proof?
- Now Playing13minWhat is a Random Walk?
- Now Playing14minCan We Combine pi & e to Make a Rational Number?
- Now Playing8minThe Multiplication Multiverse
- Now Playing8minTelling Time on a Torus
Idea Channel
- Now Playing5minAre Olympic Competitors Geniuses?
- Now Playing5minIs CSS and Website Design a Fashion Statement?
- Now Playing5minHow will the Animated GIF affect the Presidential Election?
- Now Playing9minIs the Universe a Computer?
- 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 MP3s and Magic Spells Have in Common?
- Now Playing5minIs Facebook Changing Our Identity?
- Now Playing6minWhat Do Santa and Wrestling Have In Common?
- Now Playing9minIs a DOS Attack a Weapon?
- Now Playing4minThe Bronies Phenomenon
- Now Playing3minAn Interview with Minecraft EDU Creator Joel Levin
- Now Playing6minIs Doctor Who a Religion?
- Now Playing6minShould "Happy Birthday" be Protected by Copyright?
- Now Playing6minThe Retro Awesomeness of Adventure Time
- Now Playing5minIs Homestuck the Ulysses of the Internet?
- Now Playing5minThere's No Such Thing as Online?!?
- Now Playing5minA Visit to Mr. Monfre's Class
- Now Playing4minAre LOLCats and Internet Memes Art?