Big Picture Science

Nov 20 2024 596 ep. 54 mins 50.6k
Big Picture Science Podcast artwork

The surprising connections in science and technology that give you the Big Picture. Astronomer Seth Shostak and science journalist Molly Bentley are joined each week by leading researchers, techies, and journalists to provide a smart and humorous take on science. Our regular "Skeptic Check" episodes cast a critical eye on pseudoscience.

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Spotlight on SETI ep 3: Pascal Lee

Nov 20 2024 39 mins  
How do we know where to look for life on other planets? SETI scientists use analog sites on Earth, not only to study how life has evolved here, but the geological conditions that made it possible. Devon Island in Canada is one such analog. It's been called Mars on Earth. In this third episode, Gary Niederhoff talks with planetary scientist Pascal Lee, co-founder of The Mars Instit

Beyond the Periodic Table

Nov 17 2024 54 mins  
You interact with about two-thirds of the elements of the periodic table every day. Some, like carbon, oxygen, and nitrogen, make up our bodies and the air we breathe. Yet there is also a class of elements so unstable they can only be made in a lab. These superheavy elements are the purview of a small group stretching the boundaries of chemistry. Can they extend the periodic table

Amazing Amazonia

Nov 10 2024 73 mins  
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, two river journeys more than 100 years apart �

Fuhgeddaboudit**

Nov 03 2024 54 mins  
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 to systematize and save information we might need someday. But now that we can Goo

How Hot is Too Hot?*

Oct 27 2024 55 mins  
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 dilemma of an ever-hotter world with an author who has covered climate c

Platypus Crazy*

Oct 20 2024 54 mins  
They look like a cross between a beaver and a duck, and they all live Down Under. The platypus may lay eggs, but is actually a distant mammalian cousin, one that we last saw, in an evolutionary sense, about 166 million years ago. Genetic sequencing is being used to trace that history, while scientists intensify their investigation of the habits and habitats of these appealing Frank

Spotlight on SETI ep 2: Nathalie Cabrol

Oct 17 2024 39 mins  
What is life? Even as the search for life in the universe evolves, surprisingly, there is no consensus on what life is. We must consider hunting for life not as we know it. The existence of extremophiles on Earth has broadened the types of environments in which we might look for life elsewhere in our solar system. And recent missions to dwarf planets has shown that our solar syste

Skeptic Check: String Theory

Oct 13 2024 54 mins  
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

We'll Always Have Parasites

Oct 06 2024 54 mins  
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 untold human suffering, like those that cause African River Blindness or Lyme disease, but their

Measure For Measure

Sep 29 2024 54 mins  
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 there’s always room for greater precision. Plus, we debate the virtues of staying imperial measurements vs. going metric.