Free Science & Tech Documentaries — Page 4
Physics, chemistry, evolution and the frontiers of human knowledge. 792 free science documentaries.
The Science Behind Dogs' Incredible Sense Of Smell2022•22m•4K•★7.7
Hunt for the Giant Squid | SPECIAL | Nat Geo Animals2025•44m•4K•★7.7
What Jumping Spiders Teach Us About Color2024•33m•4K•★7.7
The DEADLIEST Storms in the World | Fatal Forecast Full Season Marathon2026•6h 59m•4K•★7.7
Secrets of the World’s Most Active UFO Zones | Encounter UFO 1072026•47m•4K•★7.7
Expedition Antarctica2024•50m•4K•★7.7
UFO Landing Sites That Shock Scientists | Encounter UFO 1062026•47m•4K•★7.7
The Cascadia Megaquake Is Inevitable. And It Will Reshape America Forever2026•36m•HD•★7.7
Bat Superpowers | Full Documentary | NOVA | PBS2025•54m•HD•★7.7
Why No One Has Measured The Speed Of Light2020•19m•4K•★7.7
How One Line in the Oldest Math Text Hinted at Hidden Universes2023•31m•4K•★7.7
What Actually Happened To Amelia Earhart?2024•37m•4K•★7.7
Secrets of Pompeii's Dead (Full Episode) | Drain the Oceans | National Geographic2025•44m•4K•★7.7
Did You Know There Was A Volcano Under Yellowstone? | X-Ray Earth (Full Episode) | Nat Geo Animals2025•44m•4K•★7.7
Our World is on Fire (Full Movie)2024•52m•4K•★7.7
Inside the World’s Worst Disasters | Beyond Catastrophes FULL SEASON MARATHON2026•5h 59m•4K•★7.7
The Human Cost of a Warming Planet | Mutant Weather 103+1042026•1h 30m•4K•★7.7
The Polar Vortex That Shook the World | Fatal Forecast 1032025•53m•4K•★7.7
The Deadly Future of Extreme Weather | Mutant Weather Full Season Marathon2026•7h 28m•4K•★7.7
How Heat, Lightning, and Climate Change Create Mega Wildfires | Mutant Weather 1012025•45m•4K•★7.7
The Heat Wave That Pushed Cities to the Brink | Mutant Weather 1082026•45m•4K•★7.7
How Pollution Is Poisoning Our Skies | Mutant Weather 1092026•45m•4K•★7.7
Climate change and the rich | DW Documentary2023•27m•HD•★7.7
Tourism in times of climate change | DW Documentary2023•28m•HD•★7.7
The Simplest Math Problem No One Can Solve - Collatz Conjecture2021•22m•4K•★7.7
Math's Fundamental Flaw2021•34m•4K•★7.7
The Discovery That Transformed Pi2021•19m•4K•★7.7
The Most Controversial Idea In Math2025•33m•4K•★7.7
Exploring Earth's Most Extreme Climates | Hostile Planet Season 1 MEGA Episode | National Geographic2025•4h 42m•4K•★7.7
Volcano Odyssey (Full Movie)2024•52m•4K•★7.7
Shifting powers - NATO and the Global South | DW Documentary2024•28m•HD•★7.7
Russia’s nuclear threats - In wartime, how safe are Ukraine’s nuclear power plants? | DW Documentary2024•52m•HD•★7.7
Chasing Carbon Zero | Full Documentary | NOVA | PBS2023•54m•HD•★7.7
The Birth of the European Continent2022•51m•HD•★7.7
Incredible Transformations of the European Continent2022•52m•HD•★7.7
"Once Infected, Death Was Certain": Inside Japan's Secret Death Lab | Inside Unit 731 - Part 12026•47m•HD•★7.7
How the World's Tallest Bridge Became an Engineering Marvel | Blueprint2025•46m•HD•★7.7
Why Hollywood Always Gets Armour and Weapons Wrong2026•22m•HD•★7.7
Sunken Treasures (Full Episode) | Drain the Oceans2022•47m•4K•★7.7
Simulated Reality2016•23m•HD•★7.7
The End of Oil, Explained | FULL EPISODE | Vox + Netflix2021•23m•HD•★7.7
Sweden's Prefab Revolution | New Episode | SBS Dateline2025•24m•HD•★7.7
The Silk Road: The Route That Sparked Revolutions2026•52m•HD•★7.7
4.5 Billion Years in 1 Hour2023•1h 4m•HD•★7.7
Inside The Epic Sea Journey From New Zealand To Antarctica | Expedition Antartica2019•50m•HD•★7.7
How Billie Eilish and FINNEAS Created Oscar-Winning 'What Was I Made For' | Vanity Fair2023•19m•HD•★7.7
How Japan is DESTROYING American Breakfast!!2026•27m•HD•★7.7
US–Türkiye: Resolving rifts? | Inside America2026•26m•HD•★7.7
This game theory problem will change the way you see the world2023•27m•4K•★7.7
The Infinite Pattern That Never Repeats2020•21m•4K•★7.7
The Oldest Unsolved Problem in Math2024•32m•4K•★7.7
How Dangerous is a Penny Dropped From a Skyscraper?2022•23m•4K•★7.7
The SAT Question Everyone Got Wrong2023•18m•4K•★7.7
Why Super Glue Is Perfect For Gluing Skin2025•26m•4K•★7.7
Why Do Escalator Steps Have Teeth?2025•22m•4K•★7.7
What Everyone Gets Wrong About Planes2024•19m•4K•★7.7
You (likely) don't understand how a sewing machine works2023•19m•4K•★7.7
I got buried in concrete to explain how it works2023•24m•4K•★7.7
I took an IQ test to explain what's wrong with them2023•34m•4K•★7.7
This mechanism shrinks when pulled2025•23m•4K•★7.7
The world depends on a collection of strange items. They're not cheap2022•19m•4K•★7.7
Risking My Life To Settle A Physics Debate2021•22m•4K•★7.7
The South Pole (Full Episode) | Pole to Pole with Will Smith | National Geographic2026•46m•4K•★7.7
Earth in 1000 Years: A Melted Mess | HD2024•46m•4K•★7.7
Galapagos: Darwin's Eden2024•52m•4K•★7.7
Inside Look: Building Disney’s New Bahamian Paradise (Full Episode) | National Geographic2025•44m•4K•★7.7
Why is this number everywhere?2024•24m•4K•★7.7
Turbulent Flow is MORE Awesome Than Laminar Flow2020•19m•4K•★7.7
The Insane Math Of Knot Theory2023•35m•4K•★7.7
The Blender Question Everyone Gets Wrong2025•20m•4K•★7.7
People said this experiment was impossible, so we tested it2024•35m•4K•★7.7
The Obviously True Theorem No One Can Prove2025•43m•4K•★7.7
Why People Are So Confident When They're Wrong2025•24m•4K•★7.7
Predicting the Next Megaquake | San Andreas: A Race Against Time2026•52m•4K•★7.7
How Earth’s Mightiest Creatures Were Destroyed | Dinosaurs: Anatomy of a Disappearance2025•52m•4K•★7.7
Speed vs Slowness: Nature’s Most Surprising Survival Strategies | The Quick and the Slow2025•47m•4K•★7.7
Bulgaria's Super Teacher | ARTE.tv Documentary2026•31m•HD•★7.7
The Illusion Of Time: How Einstein And Hawking Rewrote Reality2026•51m•HD•★7.7
Jim Al-Khalili: What Is Everything And What Is Nothing?2026•1h 59m•HD•★7.7
Neanderthals and us | DW Documentary2025•26m•HD•★7.7
The Most Advanced Jet WWII Never Saw2026•50m•HD•★7.7
Bikini Atoll: The Atomic Ship Graveyard2026•52m•HD•★7.7
Physicist Brain Cox Explains How Gravity Warps The Universe2026•59m•HD•★7.7
The End Of The West? How China Is Taking Over The World2026•47m•HD•★7.7
Oasis Of The Seas: The Largest Cruise Ship In The World2026•46m•HD•★7.7
The World’s Most Powerful 3,000 Ton Mega Crane2026•49m•HD•★7.7
Why were passengers allowed on OceanGate’s experimental Titan sub? - The Fifth Estate2024•44m•HD•★7.7
Mao's Red Terror in China | Free Documentary History2024•1h 47m•HD•★7.7
The Next Pompeii | Full Documentary | NOVA | PBS2024•54m•HD•★7.7
How Microplastics Infiltrated Our Food (And One Way To Get Them Out)2025•18m•HD•★7.7
This Is The Best Evidence That Atlantic Currents Are Slowing (AMOC Explained)2025•26m•HD•★7.7
Why wood from B.C. forests is burning to fuel U.K. energy needs - The Fifth Estate2022•43m•HD•★7.7
Analysis: US bombs Iranian port cities as IRGC closes Strait of Hormuz2026•30m•HD•★7.7
We Deciphered Ancient Text From 5000 Years Ago2026•1h 14m•HD•★7.7
Interview: Evolution of New Species, Venom, Wings, and More with Sean B. Carroll2025•1h 24m•HD•★7.7
Allergies: The Science of Why Your Body Hates You2024•18m•HD•★7.7
Interview: Fossil Hunting, Sinkholes, and Paleobotany with Kirk Johnson | Particles of Thought2025•1h 37m•HD•★7.7
The Last Day of the Dinosaurs | Free Documentary History2025•1h 7m•HD•★7.7
Jim Al-Khalili Explores The Biggest Secrets Of Quantum Physics2025•59m•HD•★7.7
Neuroscience Proves We Don’t See The Same Colors | Horizon2026•59m•HD•★7.7
Interview: Bird Song and the Evolution of Language with Erich Jarvis | Particles of Thought2025•1h 4m•HD•★7.7
Interview: De-Extinction, Dire Wolves, and Jurassic Park with Beth Shapiro | Particles of Thought2025•55m•HD•★7.7
Interview: From T. rex to Birds with Steve Brusatte | Particles of Thought2026•1h 25m•HD•★7.7
Are countries prepared to cope with extreme weather? | Inside Story2026•28m•HD•★7.7
Your Brain Ignores 99% of Reality | Extended Interview with Neuroscientist Bobby Kasthuri2024•22m•HD•★7.7
The Quantum Physicists Trying To Make Time Travel A Reality2025•59m•HD•★7.7
How Asia Is Designing Floor-Proof Cities In Earth's Most Seismic Region2025•1h 45m•HD•★7.7
Chingay In Singapore, Penang And Johor Bahru: Inside Asia’s Largest Street Performance2026•45m•HD•★7.7
The “Hippie Days” Of Physics: A Deep Dive With David Kaiser | NOVA | PBS2024•1h 20m•HD•★7.7
Tarbosaurus: Earth's Deadliest Dinosaur? | Free Documentary History2026•1h 30m•HD•★7.7
How Trump cuts could threaten US science leadership: This Is America2026•27m•HD•★7.7
The Top Secret Soviet Experiments In Atomic Agriculture2025•1h 15m•HD•★7.7
Galvanism: The Experiment That Sparked The Frankenstein Legend2025•2h 36m•HD•★7.7
How Scientists Are Battling The World's Deadliest Megafires2025•1h 33m•HD•★7.7
Tsunami: Race Against Time (Full Episode) | The Big One | National Geographic2024•44m•4K•★7.7
Meltdown, Fire, Collapse: Dissecting World Disasters (Full Episode) | Disaster Autopsy | Nat Geo2024•44m•4K•★7.7
Shark Story | FULL LENGTH | MagellanTV2018•54m•4K•★7.7
Quantum Physics Reveals: Reality Is Not What It Seems2025•51m•HD•★7.7
Pangea Proxima: End of Earth and how Humanity could survive2025•50m•HD•★7.7
What Does 10 Days of Isolation Do to Your Brain and Body?2026•52m•HD•★7.7
Did The Entire Universe Begin From Nothing?2026•1h 0m•HD•★7.7
What's Inside The 99% of Our Planet We Have Never Explored?2026•50m•HD•★7.7
Jane Goodall: An Inside Look (Full Documentary) | National Geographic2024•1h 30m•4K•★7.7
Hallway Hypothesis (Full Episode) | The Stanford Prison Experiment: Unlocking the Truth | Nat Geo2024•44m•4K•★7.7
Surviving with Fear (Full Episode) | Alaska: The Next Generation2024•44m•4K•★7.7
Why Nothing Feels Exciting Anymore2025•39m•HD•★7.7
Citigroup and the 'financial supermarket' experiment | FT Film2023•20m•HD•★7.7
Discovering Bigfoot - Never Before Seen Look at Sasquatch2023•1h 51m•HD•★7.7
American Commune (1080p) FULL MOVIE - Documentary, Drama, History2022•1h 31m•HD•★7.7
Walt Disney - Tales of Good & Evil Documentary2025•1h 11m•HD•★7.7
The Craziest Story You've Ever Heard2024•34m•HD•★7.7
13 British Men Face Starvation on Desert Island | The Island with Bear Grylls UK2025•46m•HD•★7.7
The Luddites: Raging Against the Machines2023•23m•HD•★7.7
VICE Inside Iran | Then and Now ft. Alex Chitty2026•20m•HD•★7.7
Finding 200 Million Year Old Fossils in Devon | Susan Calmans Grand Day Out2025•43m•HD•★7.7
The Dark Truth About PayPal2024•58m•HD•★7.7
Know When to Leave | Syensqo CEO Ilham Kadri2025•45m•HD•★7.7
The Evil Business of Bananas2023•54m•HD•★7.7
Afterlife | The Science Behind Near Death Experiences | Spiritual2024•1h 0m•HD•★7.7
Secret Sunken Cities (Full Episode) | Drain the Oceans Compilations | National Geographic2026•44m•HD•★7.7
Sharks, the Perfect Predator (Full Episode) | SHARKFEST SPECIAL | Nat Geo Animals2026•44m•HD•★7.7
The Dalai Lama: Scientist - Commonalities between Buddhist and Western Science - Award Winning Doc2023•1h 34m•HD•★7.7
The Hunt for a New Kind of Magnet to Power the Future | Bloomberg Primer2025•24m•HD•★7.7
The Richness of Time | World Science Festival2020•1h 30m•HD•★7.7
Quantum to the Cosmos: A Brief Tour of Everything | World Science Festival2023•1h 17m•HD•★7.7
Black Holes and Quantum Gravity | World Science Festival2025•1h 59m•HD•★7.7
The Past and Future of Life and the Cosmos | World Science Festival2023•1h 31m•HD•★7.7
The Quantum Frontier with Brian Greene and John Preskill | World Science Festival2025•1h 46m•HD•★7.7
The Physics and Philosophy of Time - with Carlo Rovelli2018•55m•HD•★7.7
Zap, Crackle and Pop: The Story of Electricity2015•1h 5m•HD•★7.7
Solving a 500 Year Old Cold Case - with Turi King2019•1h 1m•HD•★7.7
Searching For Cosmic Origins | World Science Festival2023•1h 32m•HD•★7.7
Quantum Reality: Space, Time, and Entanglement | World Science Festival2018•1h 33m•HD•★7.7
Physics in the Dark: Searching for Missing Matter | World Science Festival2019•1h 22m•HD•★7.7
Wizards of Odds: The Power of Probability | World Science Festival2015•1h 24m•HD•★7.7
Exploring the Deep Mysteries of Physics | World Science Festival2026•1h 48m•HD•★7.7
Black Holes and Holographic Worlds | World Science Festival2015•1h 28m•HD•★7.7
Brian Greene Hosts: Reality Since Einstein | World Science Festival2015•1h 41m•HD•★7.7
The Most Bizarre Neurological Conditions You Never Heard Of2024•1h 39m•HD•★7.7
The Obsessive Art Of William Holman Hunt | Tate Britains Great Art Walks2025•44m•HD•★7.7