• The Decomposers

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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.

    The Decomposers
  • Fuhgeddaboudit

    A thousand years ago, most people didn’t own a single book. The only way to access knowledge was to consult their memory.  But technology – from paper to hard drives – has permitted us to free our brains from remembering countless facts. Alphabetization and the simple filing cabinet have helped… Listen ⇢

    Fuhgeddaboudit
  • How Hot is Too Hot?

    Extreme heat is taking its toll on the natural world. We use words like “heat domes” and “freakish” to describe our everyday existence. These high temperatures aren’t only uncomfortable – they are lethal to humans, animals, and crops. In search of an answer to our episode’s question, we discuss the… Listen ⇢

    How Hot is Too Hot?
  • Skeptic Check: String Theory

    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… Listen ⇢

    Skeptic Check: String Theory
  • We’ll Always Have Parasites

    Imagine tapeworms longer than the height of an adult human. Or microbes that turn their hosts into zombies. If the revulsion they induce doesn’t do it, the sheer number of parasites force us to pay attention. They are the most abundant form of animal life on Earth. Parasites can cause… Listen ⇢

    We’ll Always Have Parasites
  • Measure For Measure

    Whether in miles or pounds, meters or kilograms, we take daily measure out our lives. But how did these units ever come to be, and why do we want to change them? From light-years to leap seconds, we look at the history of efforts to quantify our lives and why… Listen ⇢

    Measure For Measure
  • Medida por medida

    Ya sea en millas o libras, metros o kilogramos, medir diariamente nuestras vidas. Pero como estos unidades alguna vez llegan a ser, y por qué queremos cambiar ¿a ellos? Desde los años luz hasta los segundos bisiestos, observamos la historia de los esfuerzos para cuantificar nuestras vidas y por qué… Listen ⇢

    Medida por medida
  • Skeptic Check: Cell Phone Bans

    As middle and high schools across the country implement new cell phone bans, we consider what drove this bold step and what science says about how digital devices affect our attention and focus. An assistant principal describes how his school implemented the ban, despite protest from students and parents, and… Listen ⇢

    Skeptic Check: Cell Phone Bans
  • Cold Comfort

    Another scorching summer has us blasting the AC and grabbing a chilled drink. Air conditioning and refrigeration may beat the heat, but they also present a dilemma. The more we use them, the more greenhouse gases we emit, the hotter the planet becomes, and the more we require artificial cooling. … Listen ⇢

    Cold Comfort
  • Calling All Aliens

    Are we alone in the universe? Is there other intelligence out there? COSMIC, the most ambitious SETI search yet, hopes to answer that. We hear updates on this novel signal detection project being conducted on the Very Large Array in the desert of New Mexico.  Also, we chat with award-winning… Listen ⇢

    Calling All Aliens

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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