• Skeptic Check: Near Death Experiences

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    The idea that the universe is made of tiny vibrating strings was once the science theory du jour. String theory promised to unite the disparate theories describing particles and gravity, and many people, not just scientists, were optimistic that a theory of everything might be within our grasp. But here we are, many years later, and string theory doesn’t seem to have delivered on its initial promise. What happened? We consider the science around string theory in this episode of Skeptic Check.

    Skeptic Check: Near Death Experiences
  • That’s So Random!

    Random is as random does… makes sense doesn’t even that anyway in tune hear to randomness how lives rules. Brain chaos the drives, restoration role of help insight ecology may into randomness the, numbers sense of make statistics can’t why we or, ants not seem of erratic behavior why the… Listen ⇢

    That’s So Random!
  • Skeptic Check: Cell Phone Danger

    Every ten microseconds, someone places a cell phone call. These portable gadgets are ubiquitous, and increasingly a take-for-granted part of everyday life. But could cell phones be dangerous? Could holding a microwave transmitter up to your head for hours each day substantially increase the risk of cancer? We investigate some… Listen ⇢

    Skeptic Check: Cell Phone Danger
  • Method to Our Mathness

    The language of science is mathematics. As incredible as it seems, the universe seems to run according to laws we can write down on chalkboards. But it’s not just lab-coated researchers who wield the tool of math: Madison Avenue knows that if they tell you that a shampoo is 32… Listen ⇢

    Method to Our Mathness
  • Early Adapters

    The times are a’changing – rising temperatures, growing population, and new technology coming at us faster than a greased cheetah. So how will humans respond? Find out about future farming in the city – your vegetables might be grown in downtown, hi-rise greenhouses. Also, a population expert tells us how… Listen ⇢

    Early Adapters
  • Humans Need Not Apply

    You are one-of-a-kind, unique, indispensible… oh, wait, never mind! It seems that computer over there can do what you do … faster and with greater accuracy. Yes, it’s silicon vs. carbon as intelligent, interactive machines out-perform humans in tasks beyond data-crunching. We’re not only building our successors, we’re developing emotional… Listen ⇢

    Humans Need Not Apply
  • Skeptic Check: Saucer’s Apprentice

    They’re here! About one-third of all Americans believe we’re being visited by extraterrestrial spacecraft. But wait, you want evidence? UFO sighting are as prevalent as flies at a picnic. But proof of visitation – well, that’s really alien. Hear why belief in extraterrestrial UFOs persists … and why military sightings… Listen ⇢

    Skeptic Check: Saucer’s Apprentice
  • Found in Space

    If someone asks where you get off, you can now respond with precision. Satellites and computers spit out coordinates accurate to a few paces. And digital maps stand the Copernican principle on its head – putting you at the center of everything (how does it feel?). Find out how today’s… Listen ⇢

    Found in Space
  • Aware Am I?

    Humans are pleasure-seekers – from food to sex to fine art. But do we know why we crave what we do? Discover the surprising motivation behind our desires. Also, why our hedonistic cousins, the bonobos, may hold the secret to world peace. Plus, self-awareness in monkeys: can they really pass… Listen ⇢

    Aware Am I?
  • Off to the Traces

    If a tree fell on another planet, would we be able to detect it? Not quite yet – but we might be able to tell if the planet was habitable. A living-planet is the promise of newly-discovered Gliese 581g. But does the planet exist at all? Discover how we learn… Listen ⇢

    Off to the Traces

2026 Webby Award Nominee
for our three part series on the 20th anniversary of Hurricane Katrina

Big Picture Science is an immersive radio show and podcast that reveals the unexpected connections in science.

Our Skeptic Check episodes take a critical look at extraordinary science claims and pseudoscience.

Don’t settle for a science snapshot. Get the big picture. 

Hosted By

Molly Bentley Executive Producer and Co-Host, Big Picture Science  

Seth Shostak Producer and Co-Host, Big Picture Science
Senior Astronomer, SETI Institute

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