Kurzgesagt Podcast: Science Revealed

The Universe Is Breaking Physics 04.07.2026 47min

The more we discover about the universe… the more mysterious it becomes. In this episode, we journey into the greatest unanswered questions in modern science. From dark matter and dark energy to black holes, the origins of time, and the possibility of life beyond Earth, we explore the cosmic mysteries that continue to challenge humanity’s understanding of reality. What existed before the Big Bang? What is the universe made of? Are we truly alone in the cosmos? And will we ever uncover the answers? Drawing on the latest discoveries in astronomy, physics, and space exploration, we examine the theories, evidence, and unanswered questions that continue to push the boundaries of human knowledge. Because every answer we find opens the door to even greater mysteries—and the universe may hold secrets beyond our wildest imagination.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

Everything About Planet Earth 27.06.2026 50min

It’s the only world we know that supports life—but how much do we really know about the planet we call home? In this episode, we take a journey through Planet Earth, exploring its incredible history, dynamic geology, vast oceans, diverse ecosystems, and the powerful forces that continue to shape it every day. From the planet’s fiery beginnings over 4.5 billion years ago to the evolution of life and the rise of human civilization, we uncover the story of our extraordinary world. How did Earth form? Why is it the only known planet to support life? What lies beneath its surface, and what does its future hold? From towering mountains and deep ocean trenches to volcanoes, earthquakes, the atmosphere, and Earth’s place in the solar system, we bring together the science, history, and wonders of our remarkable planet. Because before we can understand the universe… we must first understand the world beneath our feet.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

When NASA Tried to Build a Real Flying Saucer 23.06.2026 37min

It sounds like science fiction but for a brief moment in history, engineers actually tried to build a real flying saucer. In this episode, we explore one of the strangest aerospace experiments ever attempted: the Avrocar, a disc-shaped aircraft developed during the Cold War with support from the U.S. military. Inspired by the futuristic vision of a flying saucer, the project aimed to create a revolutionary aircraft capable of vertical takeoff, hovering, and high-speed flight. Why did scientists believe it could work? What engineering challenges stood in the way? And why did the project ultimately fail? From Cold War ambitions and cutting-edge technology to the dream of reshaping aviation, we uncover the fascinating story behind an aircraft that looked like it came straight from another world. Because sometimes… the future people imagine is even stranger than science fiction.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

Why Your Fingers Wrinkles in the Shower 20.06.2026 30min

Have you ever stepped out of the shower and noticed your fingertips looking shriveled and wrinkled? It may seem like a simple reaction to water, but the real explanation is far more surprising. Scientists have discovered that wrinkled fingers aren’t just the result of your skin soaking up water—they’re actually controlled by your nervous system. Why do only your fingers and toes wrinkle? What purpose do these wrinkles serve? And could they be an evolutionary adaptation that helped our ancestors survive? In this episode, we dive into the fascinating science behind one of the most common human experiences, exploring how biology, evolution, and the brain work together in ways most of us never notice. Because sometimes… the smallest changes in our bodies reveal the biggest secrets about how we evolved.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

Could a City Survive an Asteroid?! 16.06.2026 1h 4min

It’s the kind of disaster usually reserved for science fiction—but what if it actually happened? In this episode, we explore the terrifying possibility of an asteroid striking near or directly into a major city. Using real-world science and historical impacts as our guide, we examine what determines whether a city survives or is devastated. How powerful would the impact be? Could modern technology detect the asteroid in time? And what defenses does humanity have against a threat from space? From shockwaves and firestorms to evacuation plans and planetary defense systems, we break down the physics, the risks, and the odds of one of nature’s most catastrophic events. Because while asteroids helped shape Earth’s past… one could also shape its future.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

Why Is the Sky Blue? 09.06.2026 59min

It's a question most of us ask as children, yet the answer reveals some of the most fascinating principles of physics. Why does the sky appear blue during the day, turn brilliant shades of red and orange at sunset, and become black at night?In this episode, we unravel the science behind the colors of the sky. Discover how sunlight interacts with Earth's atmosphere, why blue light scatters more than other colors, and how a phenomenon known as Rayleigh scattering paints the world above us. We'll also explore the stunning science behind sunsets, the colors of distant planets' skies, and what our atmosphere can teach us about the universe.Join us for a journey through light, color, and the invisible forces shaping the view above our heads. By the end of this episode, you'll never look at the sky the same way again.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

What Is the Universe Made Of? 05.06.2026 58min

Everything around us from the air we breathe to the stars shining across the night sky is made of something. But when scientists looked deeper into the cosmos, they discovered a shocking mystery: the matter we can see accounts for only a tiny fraction of the universe.In this episode, we explore one of the biggest questions in science: What is the universe really made of? Journey from ordinary atoms and subatomic particles to the invisible realms of dark matter and dark energy. Discover why galaxies spin the way they do, how scientists detect things they cannot see, and why nearly 95% of the universe remains largely unknown.Join us as we uncover the ingredients of the cosmos, examine the latest discoveries in astrophysics, and explore the mysteries that continue to challenge our understanding of reality. By the end of this episode, you'll see the universe and your place within it in a completely new light.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

10 Uses of Vaseline You Do Not Know 31.05.2026 47min

Most people think of Vaseline as just a simple moisturizer—but this everyday product has far more uses than many realize. In this episode, we uncover ten practical and surprising ways Vaseline can be used beyond skincare. From beauty routines and protecting dry skin to household hacks and everyday convenience, we explore how one small jar became a staple in millions of homes around the world. Which uses actually work? What are the best ways to apply it? And which popular tricks are worth knowing? Whether you already use Vaseline daily or keep it tucked away in a cabinet, you may discover a few unexpected ways to get more out of it. Because sometimes… the most useful things are hiding in plain sight.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

The Ebola Virus 27.05.2026 45min

Invisible to the naked eye, yet powerful enough to bring entire healthcare systems to the brink of collapse—the Ebola virus is one of the deadliest diseases ever discovered. In this episode, we explore the origins, spread, and impact of the Ebola virus, from its first recorded outbreaks in Central Africa to the global fear sparked by major epidemics. Known for its severe symptoms and high fatality rates, Ebola has challenged doctors, scientists, and governments for decades. How does the virus spread? Why is it so dangerous? And how have modern medicine and emergency responses helped contain outbreaks? We examine the science behind the virus, the human stories from affected communities, and the international race to stop future outbreaks before they spiral out of control. Because sometimes… the smallest organisms can create the biggest crises.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

Your Body Has a Hidden Healing Trick 23.05.2026 1h 2min

That instinct to lick a small cut might not be random—your saliva contains natural healing proteins like histatin, EGF, and Trefoil Factor 3 that help skin cells repair faster.Studies show these compounds can speed up wound closure and even support new blood vessel growth, which is important for healing. In lab tests, wounds exposed to saliva-related compounds closed faster than untreated ones.Scientists are still exploring how powerful this natural “built-in repair system” really is.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

What Is a Pandemic? 19.05.2026 51min

A single outbreak can become a global crisis faster than most people realize. In this episode, we explore what a pandemic actually is, how diseases spread across countries and continents, and why some outbreaks remain local while others change the course of history. What turns an epidemic into a pandemic? How do viruses spread so rapidly in a connected world? And how do scientists, governments, and healthcare systems respond when millions of lives are at risk? From historical outbreaks to modern global health challenges, we break down the science of pandemics, the social impact they leave behind, and the lessons humanity continues to learn from them. Because sometimes… the biggest threats are the ones we can’t even see.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

Can Chatbots Serve Doctors and Patients? 15.05.2026 22min

Artificial intelligence is rapidly entering hospitals, clinics, and even our phones—but can chatbots truly help doctors and patients? In this episode, we explore how AI-powered systems like ChatGPT and other medical assistants are being used to answer health questions, summarize records, support diagnoses, and improve communication between healthcare providers and patients. Can chatbots reduce the workload on doctors? How accurate are they when discussing medical information? And what are the risks of relying on AI in healthcare? From virtual symptom checkers to the future of digital medicine, we examine the promise, the limitations, and the ethical questions surrounding AI in healthcare. Because the future of medicine may not just involve doctors and patients… but algorithms too.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

Best Foods for Kidney Health 11.05.2026 52min

Your kidneys work nonstop filtering waste, balancing fluids, and helping keep your body functioning properly. But the foods you eat every day can either support them… or put them under extra stress. In this episode, we explore the science behind kidney-friendly nutrition and the foods that may help support healthy kidney function. From hydration and low-sodium choices to antioxidant-rich fruits and vegetables, we break down what actually matters when it comes to protecting these vital organs. Which foods are easiest on the kidneys? What eating habits may help reduce strain over time? And which popular “detox” claims are more myth than science? We separate facts from trends and look at practical ways nutrition can contribute to long-term kidney health. Because taking care of your kidneys starts long before problems appear.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

Why Inventing Color TV Was So Hard 04.05.2026 1h 1min

Color television seems simple today… but getting there was anything but. In this episode, we explore the decades-long challenge of bringing color to the screen. Early engineers weren’t just trying to add color—they had to reinvent how images were captured, transmitted, and displayed, all while making sure new broadcasts still worked with millions of existing black-and-white TVs. Why was color so difficult to achieve? How do you send color signals without breaking older systems? And what technological breakthroughs finally made it possible? From competing standards to the science of light and human vision, we break down the innovations that turned television from shades of gray into the vibrant displays we take for granted today. Because sometimes… the hardest problems are the ones hiding in plain sight.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

The Chernobyl Disaster 28.04.2026 24min

In the early hours of April 26, 1986, a routine safety test turned into one of the worst nuclear disasters in human history. In this episode, we uncover the story of the Chernobyl disaster, which occurred at a reactor in Chernobyl Nuclear Power Plant in the former Soviet Union. A combination of design flaws and human error led to a catastrophic explosion, releasing radioactive material across vast parts of Europe. What went wrong inside the reactor that night? Why did the situation spiral out of control? And how did authorities respond in the critical hours that followed? From the evacuation of nearby residents to the long-term environmental and health consequences, we explore the full scale of the disaster—and the lessons it left behind. Because some accidents don’t just change a place… they change the world.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

How Big Is the Moon? 23.04.2026 18min

The Moon looks small in the sky… but its true size might surprise you. In this episode, we take a closer look at Earth’s only natural satellite — the Moon — and explore just how big it really is. From its diameter and mass to how it compares with planets and other moons in the solar system, the numbers tell a much bigger story than what we see from Earth. How does the Moon compare to Earth? Why does it appear larger than it actually is? And what would happen if it were any bigger… or smaller? We break down the scale, the science, and the surprising role the Moon plays in shaping tides, stabilizing Earth’s rotation, and even making life possible. Because sometimes… the things that seem small are anything but.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

How Deep Is the Ocean 19.04.2026 45min

The ocean covers most of our planet… but we’ve barely explored what lies beneath. In this episode, we take a journey from the surface all the way down to the deepest known point on Earth — the Mariana Trench. As we descend layer by layer, sunlight fades, pressure rises, and the environment becomes more extreme than almost anywhere else on the planet. What lives in total darkness? How deep can humans actually go? And what secrets are still hidden miles below the surface? From the twilight zone to the crushing depths of the abyss, we explore the science, the creatures, and the mysteries of the deep ocean. Because the deeper you go… the less we know.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.

Why We Sleep 14.04.2026 20min

This episode explore the biological necessity and physiological mechanisms of sleep, emphasizing its role in maintaining metabolic, cognitive, and systemic health. Research on rats and fruit flies demonstrates that prolonged sleep deprivation leads to fatal outcomes, including oxidative stress in the gut, thermoregulatory failure, and impaired cerebral glucose metabolism. Key theories such as Synaptic Homeostasis (SHY) and the Brain Plasticity theorysuggest that sleep is essential for downscaling neural connections and reorganizing brain structure. Additionally, the discovery of the glymphatic system reveals that sleep facilitates the cleansing of neurotoxic waste via cerebrospinal fluid pulses. Recent evidence even suggests that mitochondria act as internal sensors for sleep pressure, triggering rest to repair oxidative damage. Ultimately, these sources portray sleep as an active, restorative state that is indispensable for preventing neurodegeneration and systemic collapse.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.This episode includes AI-generated content.

Why Moon Landing Photos Have No Stars 11.04.2026 22min

It sounds strange… If you were standing on the Moon, surrounded by the darkness of space, you should see more stars than ever—right? Not exactly. In this episode, we uncover why astronauts on missions like Apollo 11 reported seeing almost no stars while standing on the lunar surface. The answer lies in a surprising combination of light, human vision, and camera exposure. Why does the Sun’s glare overpower the stars? How does the Moon’s surface reflect light? And why do photos from space often appear starless? From the science of brightness and contrast to how our eyes adapt in extreme environments, we break down the real reason the stars seem to disappear in one of the darkest places imaginable. Because sometimes… what you don’t see tells the most interesting story.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.This episode includes AI-generated content.

The Iron Star Era 04.04.2026 17min

Long after the last stars have burned out… the universe doesn’t end. It simply goes quiet. In this episode, we travel unimaginably far into the future — beyond galaxies, beyond light — into the era where only the remnants of dead stars remain. White dwarfs cool, neutron stars fade, and what’s left slowly transforms into cold, lifeless objects known as iron stars. Guided by the principles of thermodynamics and the relentless march of entropy, we explore how matter itself evolves over trillions upon trillions of years. No more fusion. No more light. Just a dark universe drifting toward equilibrium. How does a star become iron? What happens when all energy is used up? And is this truly the final chapter of everything? From the last flickers of starlight to the ultimate fate of matter, this is the story of a universe slowly fading into silence. Because even the cosmos… doesn’t last forever.Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support.This episode includes AI-generated content.