Big Picture Science

By SETI Institute

Technology

What's Big Picture Science about?

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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Math's Paths [rebroadcast]

02.06.2023

If you bake, you can appreciate math’s transformative properties. Admiring the stackable potato chip is to admire a hyperbolic sheet. Find out why there’s no need to fear math - you just need to think outside the cuboid. Also, how ...

Big Picture Science episodes:

02.06.2023 Math's Paths [rebroadcast] If you bake, you can appreciate math’s transformative properties. Admiring the stackable potato chip is to admire a hyperbolic sheet. Find out why there’s no need to fear math - you just need to think outside the cuboid. Also, how ...
02.01.2023 Wondery Presents: Frozen Head Hosted by Ash Kelley and Alaina Urquhart from the hit show Morbid. When 90-year-old Laurence Pilgeram drops dead on the sidewalk outside his condo, you might think that’s the end of his story. But, really, it’s just the beginning. Because ...
01.30.2023 Skeptic Check: Understanding UAPs The newest Pentagon report on UAPs – or Unidentified Aerial Phenomenon – reflects long standing public interest about what’s in our skies. Now, NASA is investigating for themselves. Should we assume that what we can’t identify is alien visitation? In ...
01.23.2023 Vaccine Inequity A radical plan could solve a historic global health inequity. Countries in the global south who waited for more than a year for ample supplies of Covid vaccines have banded together to make mRNA vaccines locally. If successful, they could ...
01.16.2023 Testing Your Metal (rebroadcast) Catalytic converters are disappearing. If you’ve had yours stolen, you know that precious and rare earth metals are valuable. But these metals are in great demand for things other than converters, such as batteries for electric cars, wind farms and ...
01.09.2023 Melting Down (rebroadcast) Climate change isn’t waiting for us to act. We’ve missed several deadlines to mitigate the dangers of this existential threat, which suggests we prefer to avert our gaze rather than deal with the problem. It’s similar to the way society ...
01.02.2023 Coming to Our Animal Senses (rebroadcast) Animals experience the world differently. There are insects that can see ultraviolet light, while some snakes can hunt in the dark thanks to their ability to sense infrared. Such differences are not restricted to vision: Elephants can hear subsonic sounds, ...
12.26.2022 Webb Feat (rebroadcast) The James Webb Space Telescope has turned its golden eye on the cosmos. The largest, most sensitive telescope put in space since the Hubble Space Telescope is already producing new photos of far-off galaxies and other cosmic phenomena. In this ...
12.19.2022 Skeptic Check: 5G (rebroadcast) 5G, the latest mobile network standard, is coming. As new cell towers sprout around the world, do we know enough to confidently claim that this new technology is safe? After all, older networking standards relied on microwaves, radiation which has ...
12.12.2022 Tomb with a View A century ago, British archaeologist Howard Carter opened the only surviving intact tomb from ancient Egypt. Inside was the mummy of the boy king Tutankhamun, together with “wonderful things” including a solid gold mask. Treasure from King Tut’s crypt has ...
12.05.2022 Keeping Humans in the Loop (rebroadcast) Modern technology is great, but could we be losing control? As our world becomes more crowded and demands for resources are greater, some people worry about humanity’s uncertain prospects. An eminent cosmologist considers globe-altering developments such as climate change and ...
11.28.2022 Is Life Inevitable [rebroadcast] A new theory about life’s origins updates Darwin’s warm little pond. Scientists say they’ve created the building blocks of biology in steaming hot springs. Meanwhile, we visit a NASA lab where scientists simulate deep-sea vent chemistry to produce the type ...
11.21.2022 Vaccine Inequity A radical plan could solve a historic global health inequity. Countries in the global south who waited for more than a year for ample supplies of Covid vaccines have banded together to make mRNA vaccines locally. If successful, they could ...
11.14.2022 Your Inner Tree (rebroadcast) Declining biodiversity is a problem as fraught as climate change. Loss of habitat, monoculture crops, and the damming of waterways all lead to massive species extinction. They tear at life’s delicate web, and threaten a balance established by four billion ...
11.07.2022 Fuhgeddaboudit (rebroadcast) 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 ...
10.31.2022 Lady Parts The Supreme Court’s ruling on Roe has ignited fierce debate about bodily autonomy. But it’s remarkable how little we know about female physiology. Find out what studies have been overlooked by science, and what has been recently learned. Plus, why ...
10.24.2022 Skeptic Check: AI Comes Alive When a Google software engineer claimed that a piece of chatbot software was sentient, it was a major story. Just like your dog is sentient, could it be that some computer code – a chatbot system called LaMDA – has ...
10.17.2022 The T-Rex Files T-Rex is having an identity crisis. Rocking the world of paleontology is the claim that Rex was not one species, but actually three. It’s not the first time that this particular dino has forced us to revise our understanding of ...
10.10.2022 Animals Being Jerks (rebroadcast) They’re cute and cuddly. But they can also be obnoxious. Science writer Mary Roach has numerous tales about how our animal friends don’t always bow to their human overlords and behave the way we’d want. The resulting encounters, such as ...
10.03.2022 Phreaky Physics (rebroadcast) It was a radical idea a century ago, when Einstein said space and time can be bent, and gravity was really geometry. We hear how his theories inspire young minds even today. At small scales, different rules apply: quantum mechanics ...
09.26.2022 Skeptic Check: Data Bias (rebroadcast) Sexist snow plowing? Data that guide everything from snow removal schedules to heart research often fail to consider gender. In these cases, “reference man” stands in for “average human.” Human bias also infects artificial intelligence, with speech recognition triggered only ...
09.19.2022 De-Permafrosting Above the Arctic Circle, much of the land is underlaid by permafrost. But climate change is causing it to thaw. This is not good news for the planet. As the carbon rich ground warms, microbes start to feast… releasing greenhouse ...
09.12.2022 Like Lightning Every second, lightning strikes 50 to 100 times somewhere. It can wreak havoc by starting wildfires and sometimes killing people. But lightning also produces a form of nitrogen that’s essential to vegetation. In this episode, we talk about the nature ...
09.05.2022 Coming to Our Animal Senses Animals experience the world differently. There are insects that can see ultraviolet light, while some snakes can hunt in the dark thanks to their ability to sense infrared. Such differences are not restricted to vision: Elephants can hear subsonic sounds, ...
08.29.2022 Skeptic Check: Heal Thyself (rebroadcast) Do we still need doctors? There are umpteen alternative sources of medical advice, including endless and heartfelt health tips from people without medical degrees. Frankly, self-diagnosis with a health app is easier and cheaper than a trip to a clinic. ...
08.22.2022 Platypus Crazy (rebroadcast) 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 ...
08.15.2022 Rip Van Winkle Worm (rebroadcast) Your shower pipes are alive. So are your sinks, books, and floorboards. New studies of our homes are revealing just what species live there – in the thousands, from bacteria to flies to millipedes. Meanwhile, life keeps surprising us by ...
08.08.2022 Webb Feat The James Webb Space Telescope has turned its golden eye on the cosmos. The largest, most sensitive telescope put in space since the Hubble Space Telescope is already producing new photos of far-off galaxies and other cosmic phenomena. In this ...
08.01.2022 Building a Space Colony Ready to become a space emigre? For half a century, visionaries have been talking about our future off-Earth – a speculative scenario in which many of us live in space colonies. So why haven’t we built them? Will the plans ...
07.25.2022 Skeptic Check: Shared Reality (rebroadcast) One of the many shocking aspects of the Capitol attack was that it revealed how thoroughly the nation had cleaved into alternate realities. How did we get to this point? How did misinformation come to create beliefs embraced by millions? ...
07.18.2022 Sci-Fi From the Future (rebroadcast) Are you ready to defer all your personal decision-making to machines? Polls show that most Americans are uneasy about the unchecked growth of artificial intelligence. The possible misuse of genetic engineering also makes us anxious. We all have a stake ...
07.11.2022 Flush with Excitement (rebroadcast) The toilet: A ubiquitous appliance that dates to the time of Shakespeare. But billions of people around the world still lack modern sanitation infrastructure. And the incentive to modernize includes the possibility that recycling human waste could help with conservation ...
07.04.2022 Feet Don't Fail Me (rebroadcast) Standing on your own two feet isn’t easy. While many animals can momentarily balance on their hind legs, we’re the only critters, besides birds, for whom bipedalism is completely normal. Find out why, even though other animals are faster, we’re ...
06.27.2022 Skeptic Check: Hypnosis You are getting sleeeepy and open to suggestion. But is that how hypnotism works? And does it really open up a portal to the unconscious mind? Hypnotism can be an effective therapeutic tool, and some scientists suggest replacing opioids with ...
06.20.2022 Fantastic-er Voyage Thinking small can sometimes achieve big things. A new generation of diminutive robots can enter our bodies and deal with medical problems such as intestinal blockages. But do we really want them swimming inside us, even if they’re promising to ...
06.13.2022 Dinosaurs' Last Gasp Do we have physical evidence of the last day of the dinosaurs? We consider fossilized fish in South Dakota that may chronicle the dramatic events that took place when, 66 million years ago, a large asteroid slammed into the Gulf ...
06.06.2022 DNA is Not Destiny (rebroadcast) Heredity was once thought to be straightforward. Genes were passed in an immutable path from parents to you, and you were stuck – or blessed – with what you got. DNA didn’t change. But now we know that’s not true. ...
05.30.2022 For the Birds (rebroadcast) Birds have it going on. Many of these winged dinosaurs delight us with their song and brilliant plumage. Migratory birds travel thousands of miles in a display of endurance that would make an Olympic athlete gasp. We inquire about these ...
05.23.2022 End of Eternity (rebroadcast) Nothing lasts forever. Even the universe has several possible endings. Will there be a dramatic Big Rip or a Big Chill–also known as the heat death of the universe–in trillions of years? Or will vacuum decay, which could theoretically happen ...
05.16.2022 Neanderthal in the Family (rebroadcast) Back off, you Neanderthal! It sounds as if you’ve just been dissed, but maybe you should take it as a compliment. Contrary to common cliches, our Pleistocene relatives were clever, curious, and technologically inventive. Find out how our assessment of ...
05.09.2022 Catching Fire We have too much “bad fire.” Not only destructive wildfires, but the combustion that powers our automobiles and provides our electricity has generated a worrying rise in atmospheric carbon dioxide. And that is driving climate change which is adding to ...
05.02.2022 Skeptic Check: Dr. Oz Dr. Oz’s personable and folky approach when talking about difficult health subjects has made him a trusted source for medical information. But some of the claims offered on The Doctor Oz Show are clearly questionable, such as the existence of ...
04.25.2022 In Living Color (rebroadcast) The world is a colorful place, and human eyes have evolved to take it in – from vermillion red to bright tangerine to cobalt blue. But when we do, are you and I seeing the same thing? Find out why ...
04.18.2022 Eclectic Company (rebroadcast) We present a grab bag of our favorite recent science stories – from how to stop aging to the mechanics of cooking pasta. Also, in accord with our eclectic theme – the growing problem of space junk. Guests: Anthony Wyss-Coray ...
04.11.2022 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 ...
04.04.2022 Go With the Flow (rebroadcast) Solid materials get all the production credit. Don’t get us wrong, we depend on their strength and firmness for bridges, bones, and bento boxes. But liquids do us a solid, too. Their free-flowing properties drive the Earth’s magnetic field, inspire ...
03.28.2022 The Latest Buzz Is your windshield accumulating less bug splatter? Insects, the most numerous animals on Earth, are becoming scarcer, and that’s not good news. They’re essential, and not just for their service as pollinators. We ask what’s causing the decrease in insect ...
03.21.2022 Nuclear Worries The nuclear threat is back, and the Doomsday Clock is almost at midnight. How did we end up here again? In the 1930s, German physicists learned that splitting the nuclei of heavy atoms could release tremendous amounts of energy. Such ...
03.14.2022 Identity Crisis (rebroadcast) DNA is the gold standard of identification. Except when it’s not. In rare cases when a person has two complete sets of DNA, that person’s identity may be up in the air. Meanwhile, DNA ancestry tests are proving frustratingly vague: ...
03.07.2022 You Are Exposed (rebroadcast) There’s no place like “ome.” Your microbiome is highly influential in determining your health. But it’s not the only “ome” doing so. Your exposome – environmental exposure over a lifetime – also plays a role. Hear how scientists hope to ...

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