• Spare (Body) Parts

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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.

    Spare (Body) Parts
  • Made for Mars

    Do you have what it takes to survive on Mars?  Beginning this month, four people will spend a year in a prototype Martian habitat meant to simulate living on the Red Planet.  It’s part of NASA’s efforts to prepare us for real human missions to Mars.  Find out how well… Listen ⇢

    Made for Mars
  • Skeptic Check: NASA UFO Study

    NASA is studying more than 800 sightings of unidentified objects in our sky as part of its investigation into the UFO phenomenon. We get an update on the agency’s study in a conversation with a member of the NASA UAP panel.  We also hear why the belief that aliens exist… Listen ⇢

    Skeptic Check: NASA UFO Study
  • The Ears Have It

    What’s the difference between a bird call and the sound of a pile driver? Not much, when you’re close to the loudest bird ever. Find out when it pays to be noisy and when noise can worsen your health. Just about everyone eventually suffers some hearing loss, but that’s not merely aging. It’s an… Listen ⇢

    The Ears Have It
  • Let’s Stick Together

    Crowded subway driving you crazy?  Sick of the marathon-length grocery store line? Wish you had a hovercraft to float over traffic? If you are itching to hightail it to an isolated cabin in the woods, remember, we evolved to be together.  Humans are not only social, we’re driven to care… Listen ⇢

    Let’s Stick Together
  • Skeptic Check: Shroom with a View

    Magic mushrooms – or psilocybin – may be associated with tripping hippies and Woodstock, but they are now being studied as new treatments for depression and neurodegenerative diseases like Alzheimer’s. Is this Age of Aquarius medicine or something that could really work? Plus, the centuries-long use of psychedelics by indigenous… Listen ⇢

    Skeptic Check: Shroom with a View
  • Amazing Amazonia

    The Amazon is often described as an ecosystem under dire threat due to climate change and deliberate deforestation. Yet there is still considerable hope that these threats can be mitigated.  In the face of these threats, indigenous conservationists are attempting to strike a balance between tradition and preserving Amazonia.  Meanwhile,… Listen ⇢

    Amazing Amazonia
  • Finding Endurance

    In 1915, Endurance, the ship that took Ernest Shackleton to the Antarctic, was slowly crushed and sank. Shackleton, and the 28 men he brought with him, were camped on the ice near the ship, and watched helplessly as their transport went to a watery grave, two miles down.  But a… Listen ⇢

    Finding Endurance
  • Make Space for Animals

    Long before Yuri Gagarin became the first human to go into space, Laika, a stray dog, crossed the final frontier. Find out what other surprising species were drafted into the astronaut corps. They may be our best friends, but we still balk at giving other creatures moral standing. And why… Listen ⇢

    Make Space for Animals
  • Skeptic Check: Do Your Own Research

    Scientists are increasingly finding their expertise questioned by non-experts who claim they’ve done their own “research.” Whether advocating Ivermectin to treat Covid, insisting that climate change is a hoax, or asserting that the Earth is flat, doubters are now dismissed by being told to “do your own research!” But is… Listen ⇢

    Skeptic Check: Do Your Own Research

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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