Kurzgesagt Podcast: Science Revealed

Menstruation is a natural part of the human reproductive system, yet it remains surrounded by myths, embarrassment, and misinformation. In this episode, we break down what actually happens during the menstrual cycle , from the hormonal changes that prepare the body for a possible pregnancy to what happens when pregnancy doesn’t occur. Why does menstruation happen? What causes cramps, mood changes, and other common symptoms? How long does a typical cycle last? And why can periods look and feel different from person to person? We explore the science of the menstrual cycle in a simple, informative way while separating common myths from what we know about reproductive health. Because understanding menstruation isn’t just about biology—it’s about understanding one of the most normal processes of the human body. Hosted on Acast. See acast.com/privacy for more information.

From the original Macintosh to the iPhone, Apple has repeatedly changed how people interact with technology. In this episode, we explore the technology behind Apple’s most influential products and the philosophy that has shaped its approach to hardware, software, design, and user experience. We look at the innovations that helped Apple stand out, from custom chips and operating systems to touchscreens, biometric security, and tightly integrated devices. How does Apple make its hardware and software work so seamlessly together? Why has its approach to product design been so influential? And what technologies could define Apple’s next chapter? We take a closer look at the engineering, innovation, and strategy behind one of the world’s most influential technology companies—and how Apple’s technology has helped shape the modern digital world. Hosted on Acast. See acast.com/privacy for more information.

Eggs are packed with protein, vitamins, and essential nutrients—but what happens to your kidneys if eggs become an everyday part of your diet? In this episode, we explore the science behind eggs, protein, and kidney health . We look at how the kidneys process the waste products created when your body breaks down protein, whether eating eggs daily puts extra strain on healthy kidneys, and why the answer can be different for people who already have kidney problems. Are eggs actually bad for your kidneys? Does eating more protein mean your kidneys work harder? And how much does your overall diet matter? We separate common nutrition myths from what research tells us, giving you a clearer understanding of how one of the world’s most popular foods interacts with kidney function. Because when it comes to nutrition, the real story is often more nuanced than a simple “good” or “bad.” Hosted on Acast. See acast.com/privacy for more information.

What if one of nature’s tiniest creations could outperform one of humanity’s strongest materials? 🕷️ In this episode, we dive into the fascinating science behind spider silk and explore the claim that it can be stronger than steel. We’ll uncover what makes spider silk so incredibly strong, how its strength compares to steel, and why scientists are so interested in using it to create everything from advanced medical materials to next-generation fabrics. Is spider web really stronger than steel—or is there more to the story? 🎧 Tune in and discover the incredible science hiding in a spider’s web. Hosted on Acast. See acast.com/privacy for more information.

ISO is one of the most important settings in photography and video—but it’s also one of the most misunderstood. In this episode, we break down what ISO actually does, how it affects the brightness and quality of your images, and why increasing ISO can introduce unwanted noise. We explore how ISO works alongside shutter speed and aperture to create the exposure you want. What does ISO really mean? When should you raise or lower it? Why can a brighter image sometimes look worse? And how can understanding ISO help you shoot better photos and videos? Whether you’re using a professional camera, a smartphone, or just getting started with photography, this episode makes ISO simple and practical. Because once you understand ISO, controlling light becomes a whole lot easier. Hosted on Acast. See acast.com/privacy for more information.

What if scientists could grow tiny, simplified versions of human brains in a laboratory? In this episode, we explore brain organoids—three-dimensional clusters of human cells that can develop some features of brain tissue. These remarkable creations are helping researchers study how the brain develops, investigate neurological conditions, and explore potential treatments in ways that traditional laboratory models cannot always replicate. How are brain organoids made? What can they actually do? Could they ever develop something resembling consciousness? And what ethical questions arise when scientists create increasingly complex brain-like tissue? We explore the science behind organoids, their potential to transform neuroscience and medicine, and the fascinating questions they raise about what it means to create something that resembles part of the human brain. Because the closer science gets to understanding the brain, the more complicated the questions become. Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support . Hosted on Acast. See acast.com/privacy for more information.

What happens when artificial intelligence moves from analyzing code to creating malicious software? In this episode, we explore the growing intersection between AI and cybersecurity, examining reports and experiments involving AI systems capable of generating code that could be used in cyberattacks. We look at what makes AI-assisted malware different, how quickly these threats could evolve, and why cybersecurity researchers are paying close attention. Could AI eventually create malware faster than humans can detect it? How much of the process can AI automate? And what happens when the same technology can be used for both cyberattacks and defense? We examine the technology, the risks, the research, and the ongoing race between attackers and cybersecurity professionals—without getting into instructions for creating or deploying malware. Because as AI becomes more capable, the battle to keep our digital world secure is becoming more complicated. Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support . Hosted on Acast. See acast.com/privacy for more information.

Magnets are everywhere—from the speakers in our phones to electric motors, medical scanners, and even the Earth itself. But what exactly makes a magnet magnetic? In this episode, we take a fascinating journey into the world of magnetism. We explore magnetic fields, north and south poles, attraction and repulsion, electromagnetism, and why certain materials respond to magnets while others don’t. How does a magnet create an invisible force? Why do opposite poles attract and similar poles repel? And how does Earth’s magnetic field protect our planet? Whether you’re curious about everyday magnets or the powerful magnetic technologies used in modern science, this episode breaks down the science in a simple and engaging way. Because sometimes, the invisible forces around us are the most fascinating ones. Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support . Hosted on Acast. See acast.com/privacy for more information.

Orbiting Earth at nearly 28,000 kilometers per hour, the International Space Station is one of humanity’s greatest engineering achievements—a permanently inhabited laboratory floating hundreds of kilometers above our planet. In this episode, we explore how the International Space Station (ISS) works, from its construction and life-support systems to the science conducted aboard and the daily lives of the astronauts who call it home. How does the ISS stay in orbit without falling to Earth? How do astronauts breathe, eat, sleep, and exercise in microgravity? And what kinds of groundbreaking research are being carried out in space? We examine the technology that keeps the station operational, the international collaboration behind its success, and the vital role it plays in preparing humanity for future missions to the Moon, Mars, and beyond. Because the International Space Station isn’t just a laboratory in space—it’s a glimpse into the future of human exploration. Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support . Hosted on Acast. See acast.com/privacy for more information.

Rainbows are usually known for their brilliant colors—but under certain conditions, they can appear almost completely white. In this episode, we explore the fascinating science behind fogbows, sometimes called white rainbows. These rare atmospheric phenomena form when sunlight interacts with extremely tiny water droplets in fog, creating a pale, ghostly arc instead of the vivid spectrum we normally expect. Why do the colors disappear? How are fogbows different from ordinary rainbows? And what other strange optical illusions can the atmosphere create? We explore the science of light, water droplets, and atmospheric conditions to uncover why one of nature’s most colorful spectacles can sometimes turn almost completely white. Because even when the colors disappear… the physics behind the rainbow is still extraordinary. 🌈 Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support . Hosted on Acast. See acast.com/privacy for more information.

What if we could predict the future with absolute certainty? In this episode, we explore one of science and philosophy’s most fascinating questions: Is perfect prediction actually possible? From weather forecasting and artificial intelligence to quantum physics and chaos theory, we examine the limits of our ability to foresee what happens next. Can enough data make the future completely predictable? Why do even the most advanced computer models still make mistakes? And does the universe itself place fundamental limits on prediction? We dive into the science of probability, the butterfly effect, randomness, and the surprising ways small uncertainties can grow into massive differences over time. Along the way, we’ll discover why some events are remarkably predictable while others remain forever beyond our reach. Because the future isn’t just something we wait for—it may be something that’s impossible to know perfectly. Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support . This episode includes AI-generated content. Hosted on Acast. See acast.com/privacy for more information.

How do you become the biggest creator on YouTube? In this episode, we take an inside look at the remarkable rise of MrBeast, exploring the strategies, creativity, and relentless experimentation that transformed his channel into the most-subscribed on the platform. From viral challenges and blockbuster productions to philanthropy and business ventures, we uncover the formula behind his unprecedented success. What makes MrBeast’s videos so compelling? How does he capture and keep the attention of millions of viewers? And what lessons can aspiring creators, entrepreneurs, and marketers learn from his approach? We break down his storytelling techniques, production process, thumbnail and title strategy, audience psychology, and the business decisions that turned a YouTube channel into a global brand. Whether you’re a content creator, a marketing enthusiast, or simply curious about the world’s biggest YouTuber, this episode reveals the secrets behind one of the greatest digital success stories of our time. Because behind every viral video is a carefully crafted strategy—and behind every empire is a creator who never stopped learning. Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support . This episode includes AI-generated content. Hosted on Acast. See acast.com/privacy for more information.

For many people, alcohol is part of celebrations and social gatherings. But for others, what starts as an occasional drink can gradually become a powerful dependence. In this episode, we explore the science behind alcohol addiction and why it can be so difficult to overcome. We examine how alcohol affects the brain’s reward system, alters decision-making, and changes the body’s chemistry over time, making some people more vulnerable to developing alcohol use disorder than others. Why does alcohol create cravings? Why can some people drink occasionally while others struggle to stop? And what happens inside the brain as dependence develops? Drawing on neuroscience, psychology, and medical research, we separate myths from facts and explain the biological, psychological, and social factors that contribute to alcohol addiction—as well as the pathways to prevention, treatment, and recovery. Because understanding addiction is the first step toward understanding the people it affects. Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support . Hosted on Acast. See acast.com/privacy for more information.

In mid-2026, extreme heatwaves and record-breaking temperatures devastated Western Europeand parts of North America, leading to more than 20,000 fatalities in June alone. Scientific analysis confirms that human-driven climate changesignificantly intensified these events, pushing temperatures several degrees higher than historical norms and fueling massive wildfires in France and Spain. The intense weather caused severe infrastructure disruptions, including the shutdown of a French nuclear reactor and the cancellation of major public celebrations. Experts advocate for nature-based solutions, such as urban tree planting, and sustainable cooling strategies to mitigate health risks as heatwaves become more frequent. While air conditioning remains a vital temporary tool, the sources emphasize that long-term safety depends on reducing greenhouse gas emissions and improving climate resilience. Local authorities across multiple continents issued public health alerts as these persistent heat domes shattered century-old records and impacted millions of people. Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support . Hosted on Acast. See acast.com/privacy for more information.

Some questions have no easy answers. The more you think about them, the deeper the mystery becomes. In this episode, we explore some of the most profound existential questions ever asked—about consciousness, reality, time, free will, identity, death, and the meaning of existence itself. These are the questions that have challenged philosophers, scientists, and curious minds for thousands of years. Why does anything exist at all? Are we truly in control of our choices? What is consciousness? And if the universe has no inherent purpose… can we create our own? Drawing from philosophy, psychology, neuroscience, and modern science, we examine the ideas that continue to shape humanity’s search for meaning. Because sometimes… the most unsettling questions don’t have answers—they simply change the way we see the world. Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support . Hosted on Acast. See acast.com/privacy for more information.

Some of the greatest scientific discoveries weren’t planned—they happened by accident. In this episode, we explore the remarkable role of serendipity in the history of science, uncovering how unexpected observations, fortunate mistakes, and curious minds led to breakthroughs that changed the world. From life-saving medicines to revolutionary technologies, chance has often played a surprising role in human progress. How did accidents lead to groundbreaking discoveries? What happens when scientists recognize the importance of the unexpected? And why is curiosity just as important as careful planning? Through fascinating stories of famous discoveries, we reveal how luck, preparation, and persistence have worked together to shape modern science and transform our understanding of the world. Because sometimes… the greatest discoveries are the ones no one was looking for. Become a supporter of this podcast: https://www.spreaker.com/podcast/kurzgesagt-podcast-science-revealed--6600013/support . Hosted on Acast. See acast.com/privacy for more information.

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 . Hosted on Acast. See acast.com/privacy for more information.

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 . Hosted on Acast. See acast.com/privacy for more information.

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 . Hosted on Acast. See acast.com/privacy for more information.

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 . Hosted on Acast. See acast.com/privacy for more information.