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NOVA Presents

NOVA Presents

Ever wonder what's really going on in the world of science? We've got you covered. Join us for conversations with the researchers making tomorrow's breakthroughs, deep dives into the universe's biggest mysteries, and clear explanations of the discoveries that matter most. We're talking climate breakthroughs, space mysteries, AI developments, and quantum leaps, all explained by the people doing the work.

Whether you're curious about breaking headlines, fascinated by black holes and alien worlds, or ready for mind-bending conversations with brilliant scientists, NOVA Presents delivers four incredible series that make complex science feel like chatting with your smartest friend. For over 50 years, NOVA has been your trusted guide to understanding the world, now we're bringing that same curiosity and clarity straight to your ears. Come explore with us.

Discover more NOVA content and subscribe to our YouTube channel. 

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Episodes

From Marine One to Mission Antarctica

Brent Minchew responded to the Pentagon on September 11th, 2001. Before he was a glaciologist at Caltech, he was a marine aboard the Marine One presidential helicopter and was one of the first on sight after the deadly attack. Brent joins Hakeem to trace his unlikely path from a working-class upbringing in Texas to a career studying the world's most extreme ice sheets. And he traces how his experience in the military informs his scientific mission planning and decision making. 

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Brent Minchew is a glaciologist and geophysicist at Caltech, where he leads research on the dynamics of ice sheets and sea -level rise, and Chief Scientist at Arête Glacier Initiative. A former U.S. Marine, he now co-leads efforts to test real-world interventions that could stabilize the world's most vulnerable glaciers.

2026-09-08
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Glacier Rescue

Brent Minchew has a plan that could  stop the “Doomsday Glacier” in its tracks, and we don’t even need new technology to do it. The Caltech glaciologist returns to unveil an intervention that could save coasts around the world: refreezing Thwaites Glacier to its own bedrock using passive principles of physics. Brent walks Hakeem through the natural process that slows glaciers down, and lays out a plan to investigate if they can truly deploy it on the world's most precarious glacier.

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Brent Minchew is a glaciologist and geophysicist at Caltech, where he leads research on the dynamics of ice sheets and sea -level rise, and Chief Scientist at Arête Glacier Initiative. A former U.S. Marine, he now co-leads efforts to test real-world interventions that could stabilize the world's most vulnerable glaciers.

2026-09-03
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The Glacier That Could Change the World

Brent Minchew is an expert on the glacier that could devastate the world’s coastlines. As a glaciologist at Caltech, he's spent his career tracking Thwaites Glacier, AKA the "Doomsday Glacier." It’s roughly the size of Florida and already losing 50 billion tons of ice a year. Brent joins Hakeem to break down what scientists know – and don’t know – about the glacier that could determine our future. How certain is that “doom,” and how fast could it happen? They nerd out about what happens as glaciers slip into the sea, how satellites can measure glacier movement down to the millimeter from orbit, and how Thwaites might be the single most important glacier on the planet.

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Brent Minchew is a glaciologist and geophysicist at Caltech, where he leads research on the dynamics of ice sheets and sea -level rise, and Chief Scientist at Arête Glacier Initiative. A former U.S. Marine, he now co-leads efforts to test real-world interventions that could stabilize the world's most vulnerable glaciers.

2026-09-01
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The Hidden Math Behind Everything

Jordan Ellenberg tells Hakeem that math isn't just about numbers. It's about everything. The mathematician and bestselling author shares how AI models are trained through trial and error, why geometry secretly governs everything from family trees to statistical correlation, and why uncertainty, not certainty, is the true language of the universe. From new dimensions to hurricanes we can't quite predict, Jordan and Hakeem trace math's fingerprints across physics, language, and daily life in a preview of his upcoming book, Don't Be Too Sure.


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Guest Bio:

Learn more about NOVA and visit our YouTube channel.

Jordan Ellenberg is a professor of mathematics at the University of Wisconsin–Madison, specializing in number theory and arithmetic algebraic geometry. He is the New York Times bestselling author of How Not to Be Wrong and Shape, and his forthcoming book, Don't Be Too Sure, arrives in 2027

2026-08-27
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Certainty Is Overrated

Jordan Ellenberg finds mathematical certainty overrated. Calming our fear of the unknown, the mathematician joins Hakeem to explore why math, contrary to popular belief, is less about proof and more about probability. He traces uncertainty's surprisingly recent arrival in mathematical history and its deep ties to quantum physics. Jordan also unpacks the difference between what's unknown and what's fundamentally unknowable, why hurricanes and earthquakes are "certain u

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Jordan Ellenberg is a professor of mathematics at the University of Wisconsin–Madison, specializing in number theory and arithmetic algebraic geometry. He is the New York Times bestselling author of How Not to Be Wrong and Shape, and his forthcoming book, Don't Be Too Sure, arrives in 2027.

2026-08-25
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Next Dimension Geometry

Jordan Ellenberg says geometry isn’t about shapes. It’s about distance. In a tour of geometry far stranger than anything from high school, the mathematician breaks down how our ancient understanding of triangles evolved into the invisible architecture behind AI, family trees, and human relationships. Minds expand as we ask why the "closeness" between two ideas is a literal angle in a vast multi-dimensional space, and what can a 19th-century novella about a talking square teach us about worlds we'll never see? 

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Jordan Ellenberg is a professor of mathematics at the University of Wisconsin–Madison, specializing in number theory and arithmetic algebraic geometry. He is the New York Times bestselling author of How Not to Be Wrong and Shape, and his forthcoming book, Don't Be Too Sure, arrives in 2027.

2026-08-20
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AI’s Hidden Math

Jordan Ellenberg has good news: artificial intelligence is just math you can actually understand. The mathematician joins Hakeem to pull back the curtain on how large language models really work, revealing that the "miracle" of AI is closer to trial and error scaled up billions of times than anything resembling thought. Jordan breaks down why the process works so well, how every word becomes a point in a space with hundreds of dimensions, and why your chatbot's "personality" is engineered, not accidental.

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Jordan Ellenberg is a professor of mathematics at the University of Wisconsin–Madison, specializing in number theory and arithmetic algebraic geometry. He is the New York Times bestselling author of How Not to Be Wrong and Shape, and his forthcoming book, Don't Be Too Sure, arrives in 2027.

2026-08-18
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Hobbits, Neanderthals, and Dragon Man

Ella Al-Shamahi explores what it means to be human. She reveals the surprising truth that our ancestors shared the planet with at least seven other human species as recently as 50,000 years ago. Ella and Hakeem dig into Neanderthal culture and the mysterious Denisovans who were identified from a single finger bone. Then Ella shares something more personal: her own journey from creationist to one of the leading voices in paleoanthropology.

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Ella Al-Shamahi is a paleoanthropologist, explorer, and presenter based in London. She specializes in human evolution and has conducted fieldwork in some of the world's most dangerous and remote regions in search of fossil evidence of our earliest ancestors. She is a TED speaker and has appeared in numerous science documentaries, including hosting NOVA and BBC’s five-part series HUMAN, available on the PBS App and NOVA’s website. 

2026-08-13
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Creationist to Evolutionary Biologist

Ella Al-Shamahi set out to disprove the theory of evolution. Now she’s one of its greatest advocates. In this deeply personal conversation, Ella tells Hakeem her story. She started university as an avid creationist missionary with the intention of disproving evolution, and then her world started to fall apart.  This candid conversation covers what the journey from creationist to paleoanthropologist actually looked like, and the evidence that shifted her thinking. It is a path with personal costs and the impact of changing worldviews. It's a thoughtful reflection on science, identity, community and why empathy matters more than argument when deeply held beliefs meet new evidence. 

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Ella Al-Shamahi is a paleoanthropologist, explorer, and presenter based in London. She specializes in human evolution and has conducted fieldwork in some of the world's most dangerous and remote regions in search of fossil evidence of our earliest ancestors. She is a TED speaker and has appeared in numerous science documentaries, including hosting NOVA and BBC’s five-part series HUMAN, available on the PBS App and NOVA’s website. 

2026-08-11
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Rethinking Neanderthals

Ella Al-Shamahi thinks Neanderthals have a reputation problem, and the science backs her up. For decades, the word "Neanderthal" has been shorthand for something primitive and brutish. But the archaeological record tells a more nuanced story. Ella joins Hakeem to explore what we actually know about our closest ancient relatives: how they looked, how they lived, what their culture reveals about their inner lives, and if we would even recognize one walking around today. They also dig into the remarkable story of the Denisovans, a species shrouded in mystery and identified first not from a skull or skeleton, but from a single finger bone. 

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Ella Al-Shamahi is a paleoanthropologist, explorer, and presenter based in London. She specializes in human evolution and has conducted fieldwork in some of the world's most dangerous and remote regions in search of fossil evidence of our earliest ancestors. She is a TED speaker and has appeared in numerous science documentaries, including hosting NOVA and BBC’s five-part series HUMAN, available on the PBS App and NOVA’s website.

2026-08-06
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Real Hobbits?

Ella Al-Shamahi says the iconic picture of human evolution is all wrong. She joins Hakeem to take apart the conventional image of the straight-line march of evolution from ape to modern human. The fossil and DNA record tells a far more complex story. As recently as 50,000 years ago, our ancestors shared the planet with at least seven other human species. From the small-statured Hobbits of Indonesia to the mysterious Denisovans of East Asia, the world was very different, and new research suggests that roughly 20% of our genome may trace back to an unknown “ghost lineage” of human species. Human evolution wasn't a straight line, it was a sprawling, interconnected web. 

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Ella Al-Shamahi is a paleoanthropologist, explorer, and presenter based in London. She specializes in human evolution and has conducted fieldwork in some of the world's most dangerous and remote regions in search of fossil evidence of our earliest ancestors. She is a TED speaker and has appeared in numerous science documentaries, including hosting NOVA and BBC’s five-part series HUMAN, available on the PBS App and NOVA’s website.

2026-08-04
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Full Interview: The Future of AI and Us

Daniela Rus brings robots and AI together, and as a computer scientist and roboticist at MIT, she's here to set the record straight. She's not just studying AI from the outside. She's building it, and finding ways to make everyday life better. Daniela joins Hakeem to pull back the curtain on what AI actually is, how it really works, and where it is genuinely headed. What happens when AI leaves the cloud and moves into your phone, your car, and even your body? And what does a tiny worm with 302 neurons have to do with the future of machine intelligence? From the history of AI to so-called “liquid networks,” self-driving cars, humanoid robots, and an origami surgeon you can swallow, this conversation covers the full scope of what MIT's most ambitious minds are building right now.

Learn more about NOVA and visit our YouTube channel.

Daniela Rus is a computer scientist and roboticist at MIT, where she serves as Director of the Computer Science and Artificial Intelligence Laboratory (CSAIL). Her research focuses on the science and engineering of autonomy, including the development of new AI models, and physically intelligent systems. She is the co-founder of Liquid AI, a startup bringing energy-efficient on-device AI models to real-world applications.

2026-07-30
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AI Origins

Daniela Rus is cutting through the AI hype and headlines to give us a real understanding of its future. As Director of MIT's Computer Science and Artificial Intelligence Laboratory, she has a front-row seat to what AI actually is, how it actually works, and what it can and cannot do. Daniela joins Hakeem to map out the full landscape of a field that is far richer than chatbots and large language models. What are the different types of AI we have today, and how does each one work? Why did methods invented 40 years ago suddenly start working? And how does Daniela envision the impact of AI on the job landscape of the future?

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Daniela Rus is a computer scientist and roboticist at MIT, where she serves as Director of the Computer Science and Artificial Intelligence Laboratory (CSAIL). Her research focuses on the science and engineering of autonomy, including the development of new AI models,, and physically intelligent systems. She is the co-founder of Liquid AI, a startup bringing energy-efficient on-device AI models to real-world applications.

2026-07-28
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AI Robots

Daniela Rus has built a robot you can swallow, and that is one of the less surprising things her lab is working on. At MIT's CSAIL, she is leading research at the frontier where artificial intelligence meets the physical world, and the results are unlike anything people have imagined. Daniela joins Hakeem to explore what it will really take for machines to move, reason, and interact the way humans do. Why are today's humanoid robots mechanically impressive but intellectually limited? What is the difference between physical AI and embodied intelligence, and why does it matter? From origami surgeons, to robots inspired by the octopus, this is a conversation about the machines of the future

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Daniela Rus is a computer scientist and roboticist at MIT, where she serves as Director of the Computer Science and Artificial Intelligence Laboratory (CSAIL). Her research focuses on the science and engineering of autonomy, including the development of new AI models, and physically intelligent systems. She is the co-founder of Liquid AI, a startup bringing energy-efficient on-device AI models to real-world applications.

2026-07-23
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When AI Escapes the Data Center

Daniela Rus wants to put AI in your pocket, your car, and your dishwasher. In fact, she has already started. As one of the world's leading AI and robotics researchers, she is building a future where artificial intelligence doesn't live in a distant data center but runs quietly and efficiently on the devices around you. The key is liquid networks, AI models inspired by a tiny worm that gets by on just 302 neurons and that are up to 1,000 times more energy efficient than traditional approaches. Daniela joins Hakeem to explore what that shift actually means: for self-driving vehicles, for privacy, for security, and for the possibility that everyone could soon have offline access to powerful AI. 

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Daniela Rus is a computer scientist and roboticist at MIT, where she serves as Director of the Computer Science and Artificial Intelligence Laboratory (CSAIL). Her research focuses on the science and engineering of autonomy, including the development of new AI models, and physically intelligent systems. She is the co-founder of Liquid AI, a startup bringing energy-efficient on-device AI models to real-world applications.

2026-07-21
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Full Interview: Anxiety Hacking

Wendy Suzuki hopes you have anxiety—good anxiety. She thinks that feeling you try to avoid could actually be your edge! Wendy joins Hakeem to explore how anxiety can be harnessed, rather than eliminated, and how it connects to two other powerful forces shaping your brain: exercise and human connection. What’s happening in that surge of stress—or in the “neurochemical bubble bath” after a hard run? Can you really train your brain to use it differently? And what do oxytocin, prairie voles, and decades of research reveal about why social bonds may be the most powerful force shaping our health, happiness, and longevity. 


Make sure to subscribe now so you never miss an episode. Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Wendy Suzuki is a neuroscientist and the Dean of the College of Arts and Science at New York University, where her research focuses on the effects of exercise on memory and brain function. She is the author of several books, including Good Anxiety: Harnessing the Power of the Most Misunderstood Emotion, and is a widely sought-after speaker on brain health, anxiety, and human performance.

2026-07-16
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Your Brain Needs Friends

Wendy Suzuki says the key to a beautiful brain is friendship, and she joins Hakeem to discuss why human connection can extend your life. By studying certain animals, like prairie voles who develop intense love bonds, we can understand what’s going on in our heads when we connect with others. Hard data and personal stories show, the power of friendship is a shockingly important part of a healthy lifestyle.

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Wendy Suzuki is a neuroscientist and the Dean of the College of Arts and Science at New York University, where her research focuses on the effects of exercise on memory and brain function. She is the author of several books, including Good Anxiety: Harnessing the Power of the Most Misunderstood Emotion, and is a widely sought-after speaker on brain health, anxiety, and human performance.

2026-07-14
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Neuroscience of Exercise

Wendy Suzuki says just 10 minutes of movement can change your brain.But how? What’s actually happening in your head during a walk—or a workout—and why does it matter so much? Wendy joins Hakeem to unpack the science of exercise and the brain, from chemical surges to lasting rewiring. Plus: how do meditation, cold showers, and your environment really change your brain?

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Wendy Suzuki is a neuroscientist and the Dean of the College of Arts and Science at New York University, where her research focuses on the effects of exercise onand memory andon brain function. She is the author of several books, including Good Anxiety: Harnessing the Power of the Most Misunderstood Emotion, and is a widely sought-after speaker on brain health, anxiety, and human performance.

2026-07-09
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Good Anxiety

Neuroscientist Wendy Suzuki thinks your anxiety could be a superpower. What if you stopped trying to shut it down—and started using it? Wendy joins Hakeem to reframe anxiety as fuel, not flaw, and shows how to turn that rush of stress into focus and action. Plus, Wendy gives some hot takes on anxiety hacks like fidget spinners and weighted blankets.

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Wendy Suzuki is a neuroscientist and the Dean of the College of Arts and Science at New York University, where her research focuses on the effects of exercise onand memory andon brain function. She is the author of several books, including Good Anxiety: Harnessing the Power of the Most Misunderstood Emotion, and is a widely sought-after speaker on brain health, anxiety, and human performance.

2026-07-07
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Full Interview: T. rex to Birds

Steve Brusatte has the dirt on dinosaurs and joins Hakeem to trace the full 100-million-year history of the tyrannosaur dynasty, the asteroid that ended it, and the remarkable truth that dinosaurs never actually disappeared. One small lineage survived to become every bird alive today, and Steve walks through the long and contested scientific history of how we came to understand that connection. He also shares what it was like to serve as the official paleontology consultant on the Jurassic World films, and how to find the balance between science and cinema.

Make sure to subscribe now so you never miss an episode. Learn more about NOVA and visit our YouTube channel.

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Guest Bio

Steve Brusatte is a paleontologist at the University of Edinburgh, where he leads a research group studying dinosaur evolution and the history of life on Earth. He is the author of several acclaimed books, including The Rise and Fall of the Dinosaurs and The Story of Birds, and has served as a paleontology consultant on the Jurassic World film franchise. He will be featured in NOVA's upcoming five-part documentary series Evolution, coming fall 2026.

2026-07-02
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Real World vs “Jurassic World"

Steve Brusatte, a real paleontologist, contributed to the Jurassic World franchise, but what really happens when science meets cinema? In this episode, Steve joins Hakeem to discuss what that paleontology consultant role actually looks like, how he navigates the tension between scientific accuracy and Hollywood storytelling, and what the films have gotten increasingly right about dinosaurs over the years. They also dig into which documentaries offer the most accurate modern picture of dinosaurs, how AI is beginning to reshape paleontology, and what Steve would love to see in a future Jurassic film.

Make sure to subscribe now so you never miss an episode. 

Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Steve Brusatte is a paleontologist at the University of Edinburgh, where he leads a research group studying dinosaur evolution and the history of life on Earth. He is the author of several acclaimed books, including The Rise and Fall of the Dinosaurs and The Story of Birds, and has served as a paleontology consultant on the Jurassic World film franchise. He will be featured in NOVA's upcoming five-part documentary series Evolution, coming fall 2026.

2026-06-30
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How Birds Survived the Asteroid

Steve Brusatte knows every bird today is a living dinosaur, and as a paleontologist, he can tell you how that happened. Steve joins Hakeem to walk through the catastrophic asteroid impact 66 million years ago that ended the age of T. rex, and to explain why one small, beaked, seed-eating lineage was the only branch of the dinosaur family tree to survive. He traces the long and contested scientific history of the bird-dinosaur connection and the discovery by Chinese farmers in the 1990s that finally settled the debate. The age of dinosaurs did not end with the asteroid. It transformed.

Make sure to subscribe now so you never miss an episode. Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Steve Brusatte is a paleontologist at the University of Edinburgh, where he leads a research group studying dinosaur evolution and the history of life on Earth. He is the author of several acclaimed books, including The Rise and Fall of the Dinosaurs and The Story of Birds, and has served as a paleontology consultant on the Jurassic World film franchise. He will be featured in NOVA's upcoming five-part documentary series Evolution, coming fall 2026.

2026-06-25
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T. rex Family Secrets

Steve Brusatte says T. rex wasn’t always the king, and as a paleontologist, he has spent his career uncovering how it got to the top of the food chain. Steve joins Hakeem to trace the full 100-million-year history of the tyrannosaur family, from its surprisingly small and nimble origins to the bone-crushing apex predator that ruled the end of the Cretaceous. They discuss how T. rex was not just a creature of brawn but also of remarkable intelligence, with keen senses of smell and hearing that made it the ultimate predator of its time. Along the way, they explore the diversity of tyrannosaur cousins including the long-snouted “Pinocchio rex” discovered on a Chinese construction site, and how shifting climates, mass extinctions, and continental drift shaped the dynasty's rise over millions of years.

Make sure to subscribe now so you never miss an episode. Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

Steve Brusatte is a paleontologist at the University of Edinburgh, where he leads a research group studying dinosaur evolution and the history of life on Earth. He is the author of several acclaimed books, including The Rise and Fall of the Dinosaurs and The Story of Birds, and has served as a paleontology consultant on the Jurassic World film franchise. He will be featured in NOVA's upcoming five-part documentary series Evolution, coming fall 2026.

2026-06-23
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Full Interview: Dark Matter = Black Holes?

David Kaiser thinks the dark matter puzzle is getting closer to being solved.  Nearly a century of observations, from galaxy clusters to the cosmic microwave background, have built a compelling case for dark matter's existence, but in recent years, the leading candidates for this mysterious matter have been coming up short..  Enter black holes. Tiny ones. David explains how so-called primordial black holes that formed in the first moments after the Big Bang could possibly be all our dark matter… if they exist at all. Fortunately, this is a testable theory, and David explains the exciting new experiments that could potentially lay this cosmic mystery to rest. 

Make sure to subscribe now so you never miss an episode. Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

David Kaiser is a professor of physics and the history of science at MIT. His research spans the history of modern physics, cosmology, and the foundations of quantum theory. He is the author of several books, including How the Hippies Saved Physics, and is a frequent contributor to public conversations about science and its history.

2026-06-18
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Hunt for Mini Black Holes

David Kaiser thinks a good place to hunt for tiny black holes might be… Mars? How do you detect something microscopic, invisible, and speeding through space? Primordial black holes have long eluded astrophysicists—if they exist at all. But the hunt is heating up. David joins Hakeem to explore how scientists are combing through old data and designing new experiments that could finally catch one of these elusive objects—and possibly not only solve the century-old mystery of dark matter, but also confirm the existence of Hawking Radiation. And, yes, he explains why Mars might hold the key. 

Make sure to subscribe now so you never miss an episode. Learn more about NOVA and visit our YouTube channel.

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Guest Bio:

David Kaiser is a professor of physics and the history of science at MIT. His research spans the history of modern physics, cosmology, and the foundations of quantum theory. He is the author of several books, including How the Hippies Saved Physics, and is a frequent contributor to public conversations about science and its history.

2026-06-16
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Are Black Holes Dark Matter?

David Kaiser thinks tiny black holes from the dawn of time could be the solution to the dark matter puzzle. David joins Hakeem to discuss primordial black holes, tiny objects that may have formed in the first fraction of a second after the Big Bang. First proposed by Stephen Hawking more than 50 years ago, this hypothesis requires no new physics and no new particles, making it one of the most grounded ideas currently on the table… and one that may solve more than one cosmic mystery. David explains what these primordial black holes are, why many in the physics community are returning to this decades-old idea, and how it could potentially solve the dark matter mystery. 

Make sure to subscribe now so you never miss an episode. Learn more about NOVA and visit YouTube channel. 

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Guest Bio:

David Kaiser is a professor of physics and the history of science at MIT. His research spans the history of modern physics, cosmology, and the foundations of quantum theory. He is the author of several books, including How the Hippies Saved Physics, and is a frequent contributor to public conversations about science and its history.

2026-06-11
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Why Dark Matter Matters

David Kaiser knows the universe is hiding something enormous – and no one can see it. Dark matter appears to be all over our universe, but what is it? As a physicist and science historian, David joins Hakeem to discuss one of astrophysics most impossible puzzles. Nearly a century of observations -  from the motion of galaxy clusters to the rotation of individual galaxies to the subtle patterns in the cosmic microwave background -  has built a remarkably consistent case that most of the matter in the universe is invisible to us. Kaiser and Hakeem work through how that evidence accumulated, why the leading candidate explanations have become increasingly constrained, and one tantalizing idea that is getting physicists excited. 

Make sure to subscribe now so you never miss an episode. Learn more about NOVA and visit YouTube channel. 

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Guest Bio:

David Kaiser is a professor of physics and the history of science at MIT. His research spans the history of modern physics, cosmology, and the foundations of quantum theory. He is the author of several books, including How the Hippies Saved Physics, and is a frequent contributor to public conversations about science and its history.

2026-06-09
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Battle to Beat Malaria

Could one of the world’s deadliest diseases be headed for the history books? Malaria’s relentless yearly death toll has driven the World Health Organization to set bold  targets, and a new vaccine may signal a turning point in the long battle against this disease. Early trials demonstrated a remarkable efficacy rate, but the question remained: Could it earn an all-important recommendation from the WHO? Follow the international team of researchers that worked tirelessly to develop a vaccine that could save more lives and reshape the future of malaria prevention. 

You can watch the full film here.

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2026-05-12
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How Many Leaves Are on a Tree? | Kirk Johnson

Need to know how many leaves are on that tree? Paleobotanist Dr. Kirk Johnson shares the surprisingly nerdy method—because you never know when leaf math will come in handy.

For more, check out the extended interview with Kirk Johnson.

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2026-04-29
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Decoding the Great Pyramid

What engineering secrets lie within the Great Pyramid, and who really built it? Innovations like rope‑sewn boats, laser‑precise alignments, and hidden internal chambers reveal a building team with knowledge far ahead of its time. Uncover clues buried around Giza that point to a surprising truth about the workforce responsible for one of history’s greatest construction projects.

To watch the full film, visit https://www.pbs.org/wgbh/nova/video/decoding-the-great-pyramid/

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2026-04-28
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The Air You Breathe Is Bacteria Poop | Peter Girguis

Long before trees and grass, microbes were shaping our atmosphere. Evolutionary biologist Peter Girguis explains how ancient bacteria learned to split water for energy, and why their waste product changed Earth forever.

For more, check out the extended interview with Peter Girguis.

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2026-04-22
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The Fish That Could Walk | Sean B. Carrol

How did animals first make the giant step from water to land? Evolutionary biologist Sean B. Carroll explains how the discovery of Tiktaalik—a fossil with both fish and limb-like features—revealed a key moment in evolution.

For more, check out the extended interview with Sean B. Carroll.

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2026-04-15
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When Whales Could Walk

What if whales had legs? Once upon a time, they did. Sort of. An astonishing fossil trail shows that modern whales actually evolved from hooved land mammals. Whales still carry the fingerprints of this past, from their stomach anatomy to their swimming gait. Dive in to discover the wild story of how whales traded legs for fins, as we uncover clues about their ancestors, as well as their unlikely present-day relatives.

To watch the full film, visit https://www.pbs.org/wgbh/nova/video/when-whales-could-walk/

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2026-04-14
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How Close Can You Safely Get to a Black Hole? | Janna Levin

Black holes aren’t the cosmic monsters Hollywood makes them out to be. Astrophysicist Janna Levin explains why they’re so hard to detect, why they’re not as destructive as you might assume, and how you could safely orbit much closer than you think.

For more, check out the extended interview with Janna Levin.

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2026-04-08
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A New Law of Nature? | Robert Hazen & Michael Wong

Could the universe be governed by a law we haven’t discovered yet? Mineralogist Robert Hazen and astrobiologist Michael Wong propose a new rule—the law of increasing functional information—to explain why complex systems evolve and why complexity keeps emerging over time.

For more, check out the extended interview with Robert Hazen and Michael Wong.

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2026-04-01
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Arctic Sinkholes

What happens when the Arctic’s ancient freezer starts to fail? Scientists have uncovered the truth behind giant sinkholes exploding from the frozen ground in Siberia, and a vast lake bubbling with methane in Alaska .They are pointing to a dramatic shift beneath our feet – one driven by thawing Arctic permafrost, the vast frozen layer that stores nearly twice as much carbon as the entire atmosphere. Learn why these geological curiosities reveal a dangerous climate wildcard – one powerful enough to accelerate global warming in ways current models don’t yet predict.

To watch the full film, visit https://www.pbs.org/wgbh/nova/video/arctic-sinkholes/

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2026-03-31
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AI Is Coming for Blue Collar Jobs | Hany Farid

AI isn’t just coming for office jobs—it’s coming for some hands-on blue collar professions, too. AI expert Hany Farid explains which jobs are safe, and which are at risk. 

For more, check out the extended interview with Hany Farid. 

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2026-03-25
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What Species Can We De-Extinct? | Beth Shapiro

Scientists claimed in 2024 that they "de-extincted" the dire wolf… so what’s next, and what determines whether a species can be brought back? Evolutionary biologist Beth Shapiro explains some of the factors that go into deciding what to try and bring back. 

For more, check out the extended interview with Beth Shapiro. 

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2026-03-18
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Einstein’s Quantum Riddle

Quantum particles are breaking the rules of reality – or so it seems. Can they truly communicate across time and space instantly? Einstein dismissed this “spooky action at a distance,” convinced it exposed flaws in quantum theory. But the deeper scientists looked, the stranger the universe became. From fierce debates to important discoveries, discover how a once‑controversial quantum oddity is now reshaping how we think, how we compute, and how the future gets built.


To watch the full film, visit https://www.pbs.org/wgbh/nova/video/einsteins-quantum-riddle/ 

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2026-03-17
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Were Dinosaurs Able to Sing? | Erich Jarvis

Dinosaurs might not have been the roaring beasts many imagine. Neuroscientist Erich Jarvis explains why modern birds—living dinosaurs—offer clues about vocal learning and why dinosaurs could have been singers.

For more, check out the extended interview with Erich Jarvis. 

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2026-03-11
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Space-Time Expansion, Explained | Adam Riess

If the universe is expanding, why aren’t galaxies stretching apart? Cosmologist Adam Riess breaks down the physics behind cosmic expansion, the forces that resist it, and why dark energy dominates the vast spaces between.

For more, check out the extended interview with Adam Riess.

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2026-03-04
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Black Hole Apocalypse

What if black holes are hiding the answers cosmologists have been chasing for a century? Born from the explosive deaths of massive stars, black holes are so dense even light cannot escape – making them challenging to observe. But after decades of chasing the unseeable and building ever more sophisticated observation tools, researchers are now discovering that they hold profound clues about the nature of spacetime, the formation of galaxies, and the energy that powers our universe.

To watch the full film, visit https://www.pbs.org/wgbh/nova/video/black-hole-apocalypse/ 

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2026-03-03
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Your Brain’s Peak Performance Mode | Heather Berlin

Why does thinking too hard ruin your rhythm? Neuroscientist Heather Berlin unpacks the science of flow states, explaining why mastery means trusting your brain’s hidden systems to do what they do best.

For more, check out the extended interview with Heather Berlin.

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2026-02-25
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Black Hole Geometry Will Warp Your Brain | Janna Levin

Black holes can be bigger on the inside than they are on the outside. Astrophysicist Janna Levin explains how this is possible, and what that means about how black holes work. 

For more, check out the extended interview with Janna Levin.

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2026-02-18
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Your Brain: Perception and Control

Are we really in control of our own minds? Research suggests our sense of control may be far more fragile – and far stranger – than we imagine. From moments when the body seems to act without us, to the eerie ways our brains can warp what we think we’ve heard, scientists are uncovering a picture of the mind that’s anything but straightforward. And beneath it all lies a surprising discovery: the brain is less an observer of reality than a prediction engine, forever guessing what comes next.


To watch the full film, visit https://www.pbs.org/wgbh/nova/series/your-brain/ 

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2026-02-17
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What Exactly Is a Law of Nature? | Robert Hazen & Michael Wong

What’s the difference between a fact, a law, and a theory? Mineralogist Robert Hazen and astrobiologist Michael Wong unpack the hierarchy of scientific ideas and reveal how laws of nature elegantly unify the universe.

For more, check out the extended interview with Robert Hazen and Michael Wong.

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2026-02-11
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How Many Microbes Live on Earth? | Peter Girguis

Sorry, Beyoncé, it turns out microbes rule the world. Microbiologist Peter Girguis explains how to conceptualize just how many microbes are on Earth… and how understanding this helps us look for life on other worlds. 

For more, check out the extended interview with Peter Girguis.

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2026-02-04
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Hunt for the Oldest DNA

Scientists have discovered the oldest DNA ever found: tiny fragments hidden in the dirt. The idea that soil could hold genetic traces from creatures that vanished millions of years ago seemed impossible – until one researcher had the wild idea to go and look. But how did he find DNA that most scientists thought could never survive? What forgotten worlds can this buried DNA reconstruct? And what might these revelations tell us about our own future on a rapidly changing planet?

To watch the full film, visit here.

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2026-02-03
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Why Tropical Trees Don’t Have Rings | Kirk Johnson

Growth rings on trees can measure time, allowing scientists to date things from the deep past. But, paleobotantist Dr. Kirk Johnson explains why, in the tropics, some trees have no rings.

For more, check out the extended interview with Kirk Johnson.

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2026-01-28
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How Weight Loss Drugs Were Inspired by Gila Monsters | Sean B. Carroll

Nature has been solving problems for billions of years. Evolutionary biologist Sean B. Carroll reveals why scientists still turn to evolution’s inventions for life-saving breakthroughs, from GLP-1 drugs to statins.

For more, check out the extended interview with Sean B. Carroll.

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2026-01-21
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