Big Picture Science
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.
326
Meet Your Robot Barista
(repeat) Move over Roomba. Café robots are the latest in adorable automation. And they may be more than a fad. As robots and artificial intelligence enter the workforce, they could serve up more than machine-made macchiato. Digital...
50 min
327
The X-Flies
(repeat) Insect populations are declining. But before you say “good riddance,” consider that insects are the cornerstone of many ecosystems. They are dinner for numerous animal species and are essential pollinators. Mammals...
50 min
328
Space: Why Go There?
(repeat) It takes a lot of energy and technology to leave terra firma. But why rocket into space when there’s so much to be done on Earth? From the practical usefulness of satellites to the thrill of exploring other worlds, let us count the...
51 min
329
Skeptic Check: Science Breaking Bad
(repeat) The scientific method is tried and true. It has led us to a reliable understanding of things from basic physics to biomedicine. So yes, we can rely on the scientific method. The fallible humans behind the research, not so...
50 min
330
Creative Brains
Your cat is smart, but its ability to choreograph a ballet or write computer code isn’t great. A lot of animals are industrious and clever, but humans are the only animal that is uniquely ingenious and creative. Neuroscientist David...
50 min
331
Bacteria to the Future
(Repeat) Why did the chicken take antibiotics? To fatten it up and prevent bacterial infection. As a result, industrial farms have become superbug factories, threatening our life-saving antibiotics. Find out how our wonder drugs became bird...
50 min
332
Space Rocks!
It’s not a bird or a plane, and probably not an alien spaceship, although the jury’s still deliberating that one. Some astronomers have proposed that an oddly-shaped object that recently passed through our Solar System could be an alien...
50 min
333
Skeptic Check: Science Denial
Climate change isn’t happening. Vaccines make you sick. When it comes to threats to public or environmental health, a surprisingly large fraction of the population still denies the consensus of scientific evidence. But it’s not...
50 min
334
Rerouting... Rerouting
(Repeat) Lost your sense of direction? Blame your GPS. Scientists say that our reliance on dashboard devices is eroding our ability to create cognitive maps and is messing with our minds in general. We don’t even look at landmarks or the...
50 min
335
Air Apparent
(Repeat) Whether you yawn, gasp, sniff, snore, or sigh, you’re availing yourself of our very special atmosphere. It’s easy to take this invisible chemical cocktail for granted, but it’s not only essential to your existence: it unites...
50 min
336
Wonder Women
(Repeat) We’re hearing about harassment of, and barriers to, women seeking careers in politics and entertainment. But what about science? Science is supposed to be uniquely merit-based and objective. And yet the data say otherwise. A new study...
50 min
337
Skeptic Check: Heal Thyself
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...
50 min
338
DNA: Nature's Hard Drive
(Repeat) The biotech tool CRISPR lets us do more than shuffle genes. Researchers have embedded an animated GIF into a living organism’s DNA, proving that the molecule is a great repository for information. This has encouraged speculation...
50 min
339
Angles of a Hack
(repeat) Changed your computer password recently? We all try to stay one step ahead of the hackers, but the fear factor is increasing. The risks can range from stolen social security numbers to sabotaging a national power grid. Sixty...
50 min
340
Plan of a Hack
(repeat) Long before cyber criminals were stealing ATM passwords, phone phreaks were tapping into the telephone system. Their motivation was not monetary, but the thrill of defeating a complex, invisible network. Today “hacking” can apply to...
50 min
341
Too Big To Prove
(Repeat) Celebrations are in order for the physicists who won the 2017 Nobel Prize, for the detection of gravitational waves. But the road to Stockholm was not easy. Unfolding over a century, it went from doubtful theory to daring...
50 min
342
It's In Material
(Repeat) Astronauts are made of the “right stuff,” but what about their spacesuits? NASA’s pressurized and helmeted onesies are remarkable, but they need updating if we’re to boldly go into deep space. Suiting up on...
50 min
343
On Thin Ice
ENCORE Water is essential for life – that we know. But the honeycomb lattice that forms when you chill it to zero degrees Celsius is also inexorably intertwined with life. Ice is more than a repository for water that would otherwise...
50 min
344
What Goes Around
ENCORE It’s not just tin cans and newspapers. One man says that, from a technical standpoint, everything can be recycled – cigarette butts, yoga mats, dirty diapers. Even radioactive waste. You name it, we can recycle...
50 min
345
Frogs' Pants
ENCORE It’s one of the most bizarre biological experiments ever. In the 18th century, a scientist fitted a pair of tailor-made briefs on a male frog to determine the animal’s contribution to reproduction. The process of gestation...
50 min
346
Perpetual Emotion Machine
ENCORE Get ready for compassionate computers that feel your pain, share your joy, and generally get where you’re coming from. Computers that can tell by your voice whether you’re pumped up or feeling down, or sense changes in heart...
50 min
347
Imagining Planets
Pluto, we hardly knew ye. Well, not anymore! Until recently, Pluto and Mars were respectively the least-known and best-known planet-sized bodies in our Solar System. Thanks to the New Horizons spacecraft, our picture of Pluto has...
50 min
348
Time on Your Side
ENCORE Time passes like an arrow, but what if it flew like a boomerang? Scientists are learning how to reverse time’s most relentless march: aging. But before we rewind time, let’s try to define it, because there’s plenty of...
50 min
349
Your Brain's Reins
ENCORE You are your brain. But what happens when your brain changes for the worse – either by physical injury or experience? Are you still responsible for your actions? We hear how the case of a New York man charged with murder was...
50 min
350
What Have You Got To Move
ENCORE Whether they swim, slither, jump, or fly, animal locomotion is more than just an urge to roam: it’s necessary for survival. Evolution has come up with ingenious schemes to get from here to there. Hear how backbones evolved...
50 min