NOVA Presents

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.--------------------------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.

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.--------------------------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.

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. Learn more about NOVA and subscribe to our YouTube channel.

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/ Learn more about NOVA and subscribe to our YouTube channel.

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.Learn more about NOVA and subscribe to our YouTube channel.

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.Learn more about NOVA and subscribe to our YouTube channel.

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/ Learn more about NOVA and subscribe to our YouTube channel.

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.Learn more about NOVA and subscribe to our YouTube channel.