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.

Science
Technology
326
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
327
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
328
Brain Dust
ENCORE  Know your brain?  Think again.  Driven by a hidden agenda, powered by an indecipherable web of neurons, and influenced by other brains, your grey matter is a black box. To "know thyself" may be a challenge, and free will...
50 min
329
Skeptic Check: Your Inner Lab Coat
ENCORE  Sherlock Holmes doesn’t have a science degree, yet he thinks rationally – like a scientist. You can too! Learn the secrets of being irritatingly logical from the most famous sleuth on Baker Street. Plus, discover why animal trackers...
50 min
330
Quantum: Why We Want 'Em
ENCORE  Einstein thought that quantum mechanics might be the end of physics, and most scientists felt sure it would never be useful.  Today, everything from cell phones to LED lighting is completely dependent on the weird behavior described...
50 min
331
Skeptic Check: New UFO Evidence
It was a shocker of a story, splashed across the New York Times front page: The existence of a five-year long, hidden Pentagon investigation of UFOs.  With one-third of the American public convinced that aliens are visiting Earth, could...
50 min
332
DIY Spaceflight
ENCORE  For a half-century, space has been the playground of large, government agencies.  While everyone could dream of becoming an astronaut, few could actually do so. Things have changed.  We hear how a geeky son of immigrant parents...
50 min
333
Geology is Destiny
ENCORE  The record of the rocks is not just the history of Earth; it’s your history too.  Geologists can learn about events going back billions of years that influenced – and even made possible – our present-day existence and shaped...
50 min
334
Are Animals Really That Smart?
ENCORE  You own a cat, or is it vice versa?  Family friendly felines have trained their owners to do their bidding.  Thanks to a successful evolutionary adaptation, they rule your house. Find out how your cat has you wrapped around its...
50 min
335
Weather Vain
ENCORE  Everyone talks about the weather but no one does anything about it. Not that they haven’t tried.  History is replete with attempts to control the weather, but we’d settle for an accurate seven-day forecast. Find out how...
50 min
336
DIY Diagnosis
ENCORE  Got aches and pains?  Critters in the Cretaceous would have been sympathetic.  A new study reveals that painful arthritis plagued a duck-billed dinosaur.  Scientists impressively diagnosed the animal’s condition without a...
50 min
337
With All Our Mites
ENCORE  You are not alone.  You can’t see ‘em, but your face is a festival of face mites. They’ve   evolved with us for millennia.  And a new study finds that hundreds of different tiny spiders, beetles, and – our...
50 min
338
Time Travel Agents
Hey, let’s meet last week for coffee.  Okay, we can’t meet in the past … yet.  But could it be only a matter of time before we can?  In an attempt to defy the grandfather paradox, scientists try sending a photon back...
50 min
339
Skeptic Check: Nibiru! (Again!)
Will your calendar entry for November 19th  be your last? Some people say yes, predicting a catastrophic collision between Earth and planet Nibiru on that date and the end of the world.  But it won’t happen, because this hypothesized rogue...
50 min
340
Venom Diagram
We all get defensive sometimes.  For some animals, evolution has provided a highly effective mechanism for saying “back off!”.  A puncture by a pair of venom-filled fangs gets the point across nicely.  But one...
50 min
341
Sex Post Facto
Birds do it, bees do it, but humans may not do it for much longer.  At least not for having children.  Relying on sex to reproduce could be supplanted by making babies in the lab, where parents-to-be can select genomes that will...
50 min
342
On Defense
The military is a dangerous calling.  But technology can help out, so researchers are constantly trying to make soldiers safer.  Writer Mary Roach investigates how scientists studying so-called human factors are protecting...
50 min
343
Skeptic Check: Aliens - The Evidence
Once again the aliens have landed … in theaters.  It’s no spoiler to say that the latest cinematic sci-fi, Arrival, involves extraterrestrials visiting Earth.  But for some folks, the film’s premise is hardly...
50 min
344
Born Legacy
We know how the stars shine, but how do you make a star?  We take an all-night ride on a high-flying jet – an airborne observatory called SOFIA – to watch astronomers investigate how a star is born. As for how the...
50 min
345
Elements Never Forget
It’s elementary, Watson.  Things are in flux – from the elements in the air you breathe to party balloons.   We investigate the massive, historic loss of nitrogen from the atmosphere and meet the culprits behind a...
50 min
346
Musical Universe
In space, no one can hear you scream, but, using the right instruments, scientists can pick up all types of cosmic vibrations – the sort we can turn into sound.  After a decade of listening, LIGO, a billion-dollar physics...
50 min
347
Skeptic Check: Busting Myths with Adam Savage
Can an opera singer’s voice really shatter glass?  Can you give your car a rocket-assisted boost and survive the test drive?  How do you protect yourself from a shark attack?   Those are among the many intriguing...
50 min
348
Caught in a Traps
50 min
349
Eclipsing All Other Shows
They say that the experience of watching a total eclipse is so profound, you’re not the same afterward.  If life-changing events are your thing and you’re in the lower 48 states on August 21st, let us help you make the most of viewing the...
51 min
350
Skeptic Check: How Low Can You Go?
50 min