Big Picture Science

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 Frankencreatures; beginning by taking a census to see just how many are out there, and if their survival is under threat.Guests: Josh Griffiths – Senior Wildlife Ecologist at Cesaar Australia.Jane Fenelon – Research fellow, University of MelbournePaula Anich – Professor of Natural Resources, Northland CollegeWes Warren – Professor of Genomics, University of MissouriPhoebe Meagher – Conservation Officer, Taronga Conservation Society, AustraliaOriginally aired August 2, 2021Featuring music by Dewey Dellay and Jun MiyakeBig Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science.You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!  Learn more about your ad choices. Visit megaphone.fm/adchoices

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 system is replete with the geology that might harbor biology.In this second episode, Shannon Geary talks with astrobiologist Nathalie Cabrol, the director of the Carl Sagan Center for Research at the SETI Institute about her early interest in astrobiology, meeting Carl Sagan, and the evolving definition of life.Music by Jun MiyakeYou can support the work of Big Picture Science by joining us on Patreon. Thanks for your support! Learn more about your ad choices. Visit megaphone.fm/adchoices

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.Guest:Brian Greene – Physicist and mathematician at Columbia University, and author of The Elegant Universe: Superstrings, Hidden Dimensions, and the Quest for the Ultimate Theory.Featuring music by Dewey Dellay and Jun MiyakeBig Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science.You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support! Learn more about your ad choices. Visit megaphone.fm/adchoices

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 presence is also a sign of a health ecosystem. A parasitologist whose lab contains the largest parasite collection in the world gives us the ultimate inside story about these organisms. Guest:Scott Gardner - curator of parasites in the H.W. Manter Laboratory of Parasitology at the University of Nebraska State Museum, one of the largest collections of parasites in the world, and professor of biological sciences at University of Nebraska. Co-author of Parasites: The Inside Story.Featuring music by Dewey Dellay and Jun MiyakeOriginally aired July 31, 2023Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science.You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!  Learn more about your ad choices. Visit megaphone.fm/adchoices

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.Guest:James Vincent - Author of Beyond Measure, the Hidden History of MeasurementFeaturing music by Dewey Dellay and Jun MiyakeOriginally aired March 24, 2023Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science.You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!  Learn more about your ad choices. Visit megaphone.fm/adchoices

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 what happened next.Guests:Alison - 14 year old high school studentRaymond Dolphin - eighth grade assistant principal at Illing Middle School in Manchester, ConnecticutAlan - 17 year old high school studentGloria Mark - Psychologist, professor in the Department of Informatics at University of California, Irvine, author of book “Attention Span.”  Featuring music by Dewey Dellay and Jun MiyakeBig Picture Science is part of the Airwave Media podcast network. Please contact sales@advertisecast.com to inquire about advertising on Big Picture Science.You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!  Learn more about your ad choices. Visit megaphone.fm/adchoices

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. Can we escape this feedback loop? We look at the origins of these chilling technologies, tour the extensive chain of cold that keeps food from perishing, and consider how a desert city like Phoenix could not exist without AC.Guests:Nicola Twilley – co-host of the Gastropod podcast, a contributing writer at The New Yorker, and the author of “Frostbite: How Refrigeration Changed Our Food, Our Planet, and Ourselves”Erik Morrison – Chief cooling engineer at Transaera, Somerville, MassachusettsStan Cox – Lead scientist at the Land Institute, author of “Losing Our Cool: The Uncomfortable Truths about our Air-Conditioned World”Featuring music by Dewey Dellay and Jun MiyakeBig Picture Science is part of the Airwave Media podcast network. Please contact sales@advertisecast.com to inquire about advertising on Big Picture Science.You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support! Learn more about your ad choices. Visit megaphone.fm/adchoices

Dive into the quest for extraterrestrial life as experts reflect on the SETI Institute's 40-year journey. Discover breakthroughs in radio astronomy and the impact of the Drake Equation on our understanding of the cosmos. Delve into the philosophical questions surrounding advanced technology and humanity's future. Learn about the role of cutting-edge telescopes in detecting signs of intelligent life and explore the rigorous protocols for announcing major discoveries. It's a thrilling exploration of life beyond Earth!

Shipwrecks are scenes of tragedy, but they are also bits of history frozen in time that can provide insights into events and ideas from long ago. That is, if we can find them. From an 11th century Viking sailing ship to a WW II era British cargo ship with a mailbag of letters onboard amazingly preserved, an underwater archeologist takes us on a deep dive into history.Guest:David Gibbins - underwater archeologist, novelist, and the author of nonfiction, including his latest book, “The History of the World in Twelve Shipwrecks”.Featuring music by Dewey Dellay and Jun MiyakeBig Picture Science is part of the Airwave Media podcast network. Please contact sales@advertisecast.com to inquire about advertising on Big Picture Science.You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!  Learn more about your ad choices. Visit megaphone.fm/adchoices

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 science fiction writer Ted Chiang about how he envisions making contact with aliens in his stories, including the one that was the basis for the movie Arrival. And find out why some scientists don’t want only to listen for signals, they want to deliberately transmit messages to aliens. Is that wise and, if we did it, what would we say? Guests:Chenoa Tremblay – Postdoc researcher in radio astronomy for the SETI Institute and member of COSMIC science teamTed Chiang – Nebula and Hugo award-winning science fiction writer, best known for his collections, Stories of Your Life and Others and ExhalationDouglas Vakoch – Founder and president of METI International, a nonprofit research and educational organization devoted to transmitting intentional signals to extraterrestrial civilizationsFeaturing music by Dewey Dellay and Jun Miyake*Originally aired April 3, 2023Big Picture Science is part of the Airwave Media podcast network. Please contact advertising@airwavemedia.com to inquire about advertising on Big Picture Science.You can get early access to ad-free versions of every episode by joining us on Patreon. Thanks for your support!   Learn more about your ad choices. Visit megaphone.fm/adchoices