Free movies
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.
On now
Up next
Latest
- Now Playing10minHow Do You Preserve a Thousands Year Old Musical Style?
- Now Playing14minWhy This Mexican Genre Is Growing As Fast As K-Pop
- Now Playing14minOur Understanding of Floods is ALL Wrong
- Now Playing10minWhy Do We Use Cringey Words for Loved Ones?
- 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
It's Okay to Be Smart
- Now Playing7minWhere Did Humans Come From?
- Now Playing18minThe 12 Days of Evolution - Complete Series!
- Now Playing7minTheory vs Hypothesis vs Law
- Now Playing8minNobel Prizes: Past, Present... and Future?
- Now Playing6minIt's Okay to Fart
- Now Playing7minWhere Did Humans Come From?
- Now Playing6minThe REAL Physics of Hot Air Balloons!
- Now Playing4minHow Ingenious Animals Have Engineered Air Conditioning
- Now Playing3minElectric Buzzaloo: How Bees See the Invisible
- Now Playing4minWhy I'm Scared of Spiders
- Now Playing5minHow Many Species Are There?
- Now Playing5minWhy Are You Multicellular?
- Now Playing6minWhy Do Things Sound Scary?
- Now Playing5minThe Far Future of the Universe
- Now Playing6minHow An Igloo Keeps You Warm
- Now Playing7minHow Baby Sea Turtles Find Their Way Home
- Now Playing3minThe Equinox Isn't What You Think It Is
- Now Playing6minWhat Has New Horizons Taught Us About Pluto?
- Now Playing13minDoes Someone Else Have Your Face?
- Now Playing4minThis Is Not a Rainbow
Origin of Everything
- Now Playing12minWhy Do We Have Housing Projects?
- Now Playing8minWhy Do We Eat Artificial Flavors?
- Now Playing12minSix Historically True Facts about Money
- Now Playing6minWhy Do We Have Middle Names?
- Now Playing8minWhy Do People Have Pets?
- Now Playing11minWhat is Racial Passing?
- Now Playing7minWhy Does Santa Wear Red?
- Now Playing10minWhat is Ethnicity?
- Now Playing9minWhy Do We Drink Milk in School?
- Now Playing8minWhy Do We Get Grades in School?
- Now Playing8minWhy Did Europeans Enslave Africans?
- Now Playing7minThe True Origin of Killer Clowns
- Now Playing9minThe Origin of Gender
- Now Playing10minWhy Do We Have Hobbies?
- Now Playing7minWhy Do We Eat Popcorn at The Movies?
- Now Playing11minWhy Do So Many Religions Have Headwear?
- Now Playing10minThe 2nd Amendment Explained
- Now Playing9minWhy Do All Malls Look the Same?
- Now Playing8minWhere does the Nuclear Family Come From?
- Now Playing9minThe Origin of Gender
Two Cents
- Now Playing5minHow Do Your Tax Dollars Get Spent?
- Now Playing5minHow are credit scores calculated?
- Now Playing8min5 Strange Investor Crazes!
- 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 Playing6minDo I Need To Buy A House?
- Now Playing7minIs It Even POSSIBLE to Save for Retirement?
- Now Playing7minLove and Money
- Now Playing8minAre "Free" Video Games Really Free?
- Now Playing6minWhat is The Cost of Pet Ownership?
- Now Playing6minShould I Buy Bitcoin?
- Now Playing6minHow Do You Actually Buy A House?
- Now Playing8min5 Ways People Are Dumb About Money
- Now Playing5minBudgeting Basics
- Now Playing7minIs the Stock Market Just a Big Casino?
- Now Playing4minWhat is the DOW?
Monstrum
- Now Playing12minWhat Hellhounds Reveal about Humans' Oldest Companion
- Now Playing12minAre Cyborgs Really Monsters?
- Now Playing9minPost-Dracula Vampires: From Anne Rice to Twilight
- Now Playing13minUnicorns: Magical Icons or Violent Beasts?
- Now Playing10minTikbálang: The Filipino Nightmare Shapeshifter
- Now Playing26minThe Killer Origins of the Werewolf
- Now Playing9minAdze: the Shapeshifting Firefly from West Africa
- Now Playing17minAlien Abduction and UFOs: Why Are Grays So Common?
- Now Playing11minMapinguari: Fearsome Beast and Protector of the Amazon
- Now Playing12minHave Humans Always Feared Sharks?
- Now Playing11minMari Lwyd: The Skeleton Horse's Deep Past with Christmas
- Now Playing7minKasagonagá: The Cute, Kind Monster We All Need Right Now
- Now Playing13minUncovering the Enigma: Sasquatch Sightings
- Now Playing13minFire Cat or Fire Cart? The History of Japan's Kasha
- Now Playing12minDon't Let Them In! The Urban Legends of Black-Eyed Children
- Now Playing12minTaotie: The Mystery of Chinese Mythology's Famous Glutton
- Now Playing7minRelease the Kraken!
- Now Playing14minThe Untold Secrets of Pokémon's Monster Mythology
- Now Playing7minAre White Walkers Really Nordic Zombies?
- Now Playing12minBeyond the Supernatural Horror of the Nishi Daak Ghost
Eons
- Now Playing12minHow Sloths Went From the Seas to the Trees
- Now Playing10minThese Fossils Were Supposed To Be Impossible
- Now Playing11minThe Age of Reptiles in Three Acts
- Now Playing9minHow the Squid Lost Its Shell
- Now Playing7minThe Sea Monster from the Andes
- Now Playing12minThe Giant Dinosaur That Was Missing a Body
- Now Playing10minThe Reign of the Hell Ants
- Now Playing4minThe Tully Monster & Other Problematic Creatures
- Now Playing12minThe Humans That Lived Before Us
- Now Playing9minHow the Egg Came First
- Now Playing11minWhy Megalodon (Definitely) Went Extinct
- Now Playing8minWe Met Neandertals Way Earlier Than We Thought
- Now Playing6minThe Age of Giant Insects
- Now Playing6minLiving Fossils' Aren't Really a Thing
- Now Playing9minWhy Does Caffeine Exist?
- Now Playing10minWhen Dinosaurs Chilled in the Arctic
- Now Playing8minHow Two Microbes Changed History
- Now Playing10minThe Two Viruses That We've Had For Millions of Years
- Now Playing7minHow the T-Rex Lost Its Arms
- Now Playing7minHow Horses Went From Food To Friends
Hot Mess
- Now Playing8minHow One Conservative Texas Town Went 100% Renewable
- Now Playing9minHow to Talk About Climate Change
- Now Playing5minHow A Sticker Kept 3 Billion Tons of CO2 Out of The Air
- Now Playing7minHow To Make Clothes Less Terrible for the Planet
- Now Playing4minCould Space Mirrors Cool The Globe?
- Now Playing6minCan We Get Solar Power To Everyone Who Wants It?
- Now Playing5minWhy Don't We Hear About the Ozone Hole Anymore?
- Now Playing10minThe Link Between Extreme Weather and Climate Change
- Now Playing5minCan Farms and Forests Coexist?
- Now Playing5minWhat Can You Actually Do About Climate Change?
- Now Playing6minWould Your Neighbors Save You From a Flooding Home?
- Now Playing5minWhy We Confuse Weather and Climate
- Now Playing4minCould Space Mirrors Cool The Globe?
- Now Playing3minCould climate change make you allergic to meat?
- Now Playing5minWe've Ignored Climate Change For More Than a Century
- Now Playing4minWhy Are Hurricanes Getting Stronger?
- Now Playing5minWhat the Cutest Animal Can Teach Us About Saving Ourselves
- Now Playing5minWhat's actually the worst greenhouse gas?
- Now Playing5minWhat Can You Actually Do About Climate Change?
- Now Playing5minHow A Sticker Kept 3 Billion Tons of CO2 Out of The Air
Space Time
- Now Playing8minLIGO's First Detection of Gravitational Waves!
- Now Playing17minJWST Discovered The Farthest Star Ever Seen!
- Now Playing15minHow Many Universes Are There?
- Now Playing15minMapping the Multiverse
- Now Playing9minWhy the Big Bang Definitely Happened
- Now Playing12minHow Black Holes Kill Galaxies
- Now Playing14minThe NEW Crisis in Cosmology
- Now Playing10minStrange Stars
- Now Playing13minCould The Universe Be Inside A Black Hole?
- Now Playing11minCitizen Science
- Now Playing12minWhat is Energy?
- Now Playing9minThe Treasures of Trappist-1
- Now Playing15minHave We Solved The Black Hole Information Paradox
- Now Playing18minHow the Higgs Mechanism Give Things Mass
- Now Playing16minHow Far Beyond Earth Could Humanity Spread?
- Now Playing12minThe Many Worlds of the Quantum Multiverse
- Now Playing10minCan You Trust Your Eyes in Spacetime?
- Now Playing13minAnti-gravity and the True Nature of Dark Energy
- Now Playing15minHow Do Quantum States Manifest In The Classical World?
- Now Playing8minIs The Alcubierre Warp Drive Possible?
Beat Making Lab
- Now Playing3minBeat Making Challenge #1: Accordion Trap
- Now Playing2minWhat's In the Backpack?
- Now Playing5minBehind the Beat: Portobelo
- Now Playing3minPanama: Meet the Kids Behind the Beats
- Now Playing3minGet Your Drums Right
- Now Playing2minField Trip: Prison Beats
- Now Playing2minMashup: National Anthems
- Now Playing10minHeartbeats of Fiji
- Now Playing4minCho Cho Cho (Music Video) filmed in Goma, Congo
- Now Playing2minWalshy Fire [of Major Lazer] Wants Your Riddims
- 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 Playing3minProf. Angel Sound Prison Beats Interview
- Now Playing3min#FijiChallenge w/ Walshy Fire of Major Lazer
- Now Playing4minPortobelo (music video)
- Now Playing3minBehind The Beat: First Beat Making Lab (2011)
- Now Playing3minSampling w/ Flip Flops and Ski Beatz
Infinite Series
- Now Playing14minWhy Computers are Bad at Algebra
- Now Playing17minSplitting Rent with Triangles
- Now Playing12minThe Honeycombs of 4-Dimensional Bees ft. Joe Hanson
- Now Playing10minThe Assassin Puzzle
- Now Playing11minSingularities Explained
- Now Playing13minWhat is a Random Walk?
- Now Playing9minThis Video was Not Encrypted with RSA
- Now Playing14minHow Big are All Infinities Combined? (Cantor's Paradox)
- Now Playing16minHow to Break Cryptography
- Now Playing14minSolving the Wolverine Problem with Graph Coloring
- Now Playing14minCan a Chess Piece Explain Markov Chains?
- Now Playing13minThe Mathematics of Quantum Computers
- Now Playing14minBuilding an Infinite Bridge
- Now Playing8minA Breakthrough in Higher Dimensional Spheres
- Now Playing15minArrow's Impossibility Theorem
- Now Playing11minThe Geometry of SET
- Now Playing10minWhat Does It Mean to Be a Number? (The Peano Axioms)
- Now Playing11minTopology vs "a" Topology
- Now Playing17minHacking at Quantum Speed with Shor's Algorithm
- Now Playing10minThe Mathematics of Diffie-Hellman Key Exchange
Idea Channel
- Now Playing9minIs a DOS Attack a Weapon?
- Now Playing3minAn Interview with Minecraft EDU Creator Joel Levin
- Now Playing4minThe Bronies Phenomenon
- Now Playing5minIs Homestuck the Ulysses of the Internet?
- Now Playing5minA Visit to Mr. Monfre's Class
- Now Playing5minThere's No Such Thing as Online?!?
- Now Playing6minThe Retro Awesomeness of Adventure Time
- Now Playing6minShould "Happy Birthday" be Protected by Copyright?
- Now Playing6minIs Doctor Who a Religion?
- Now Playing9minIs the Universe a Computer?
- Now Playing5minHow will the Animated GIF affect the Presidential Election?
- Now Playing5minIs CSS and Website Design a Fashion Statement?
- Now Playing5minAre Olympic Competitors Geniuses?
- Now Playing6minWhat Do Santa and Wrestling Have In Common?
- Now Playing6minWhat do MP3s and Magic Spells Have in Common?
- Now Playing5minIs Facebook Changing Our Identity?
- Now Playing9minCan Video Games Become the Next Spectator Sport?
- Now Playing8minDo Knock-Offs Prove the Value of a Brand?
- Now Playing4minAre Mashups the End of Music Genres?
- Now Playing8minIs a Tagged Instagram More Than Just a Photo?