
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 wh...
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From the PBS science series NOVA, a biweekly podcast digging into the science behind the headlines. Alok Patel takes you behind the scenes with the people—scientists, engineers, technologist...
Listen to NOVA Now, a Science & Medicine podcast by GBH. Stream 81 episodes in English, follow new audio stories, and play episodes online on Radio and Podcast.
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Need to know how many leaves are on that tree? Paleobotanist Dr. Kirk Johnson shares the surprisingly nerdy method—because you never know wh...
What engineering secrets lie within the Great Pyramid, and who really built it? Innovations like rope‑sewn boats, laser‑precise alignments,...

Long before trees and grass, microbes were shaping our atmosphere. Evolutionary biologist Peter Girguis explains how ancient bacteria learne...
How did animals first make the giant step from water to land? Evolutionary biologist Sean B. Carroll explains how the discovery of Tiktaalik...

What if whales had legs? Once upon a time, they did. Sort of. An astonishing fossil trail shows that modern whales actually evolved from hoo...

Black holes aren’t the cosmic monsters Hollywood makes them out to be. Astrophysicist Janna Levin explains why they’re so hard to detect, wh...

Could the universe be governed by a law we haven’t discovered yet? Mineralogist Robert Hazen and astrobiologist Michael Wong propose a new r...

What happens when the Arctic’s ancient freezer starts to fail? Scientists have uncovered the truth behind giant sinkholes exploding from the...

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 ar...

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...
Quantum particles are breaking the rules of reality – or so it seems. Can they truly communicate across time and space instantly? Einstein d...

Dinosaurs might not have been the roaring beasts many imagine. Neuroscientist Erich Jarvis explains why modern birds—living dinosaurs—offer...
If the universe is expanding, why aren’t galaxies stretching apart? Cosmologist Adam Riess breaks down the physics behind cosmic expansion,...

What if black holes are hiding the answers cosmologists have been chasing for a century? Born from the explosive deaths of massive stars, bl...

Why does thinking too hard ruin your rhythm? Neuroscientist Heather Berlin unpacks the science of flow states, explaining why mastery means...

Black holes can be bigger on the inside than they are on the outside. Astrophysicist Janna Levin explains how this is possible, and what tha...
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 imagi...

What’s the difference between a fact, a law, and a theory? Mineralogist Robert Hazen and astrobiologist Michael Wong unpack the hierarchy of...

Sorry, Beyoncé, it turns out microbes rule the world. Microbiologist Peter Girguis explains how to conceptualize just how many microbes are...
Scientists have discovered the oldest DNA ever found: tiny fragments hidden in the dirt. The idea that soil could hold genetic traces from c...
You can listen to NOVA Now episodes online on Radio and Podcast. Open an episode and the site player will stream the available audio.
NOVA Now is listed as a Science & Medicine show. The show language is listed as English.
This page lists 81 episodes for NOVA Now. More episodes are available from the View more button when the list continues.
You can listen to NOVA Now episodes on this page by opening an episode and using the site player.
NOVA Now is listed as a Science & Medicine show by GBH.
This page lists 81 episodes for NOVA Now where feed data is available.