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.
Episodes
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 ...
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&...
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&h...
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 bac...
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 i...
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 interviewwith Kirk Johnson.
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...
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.
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.
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.
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.
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.
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 geolog...
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.
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.
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...
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.
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.
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 formati...
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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