Episodes

Air Datesort ascending Title
Aug 22, 2016
They Know Who You Are
No place to hide.
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ENCORE You’re a private person. But as long as you’re on-line and have skin and hair, you’re shedding little bits of data and DNA everywhere you go. Find out how that personal information – whether or not it’s used against you – is no longer solely your own. Are your private thoughts next?

A security expert shares stories of ingenious computer hacking … a forensic scientist develops tools to create a mug shot based on a snippet of DNA … and from the frontiers of neuroscience: mind reading may no longer be the stuff of sketchy psychics.

Aug 15, 2016
Are We Over the Moon
Are We Over the Moon?
Lunar return on hold.
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When astronaut Gene Cernan stepped off the moon in 1972, he didn’t think he’d be the last human ever to touch its surface.  But no one’s been back.  Hear astronaut Cernan’s reaction to being the last man on the moon, the reasons why President Kennedy launched the Apollo program, and why Americans haven’t returned.

Now other countries – and companies – are vying for a bigger piece of the space pie. Find out who – or what – will be visiting and even profiting.  Will the moon become an important place to make money?  

Aug 08, 2016
Skeptic Check: After the Hereafter
To heaven and back?
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ENCORE There are few enduring truths, but one is that no one gets out of life alive. What’s less certain is what comes next. Does everything stop with death, or are we transported to another plane of existence? First-hand accounts of people who claim to have visited heaven are offered as proof of an afterlife. Now the author of one bestseller admits that his story was fabricated.

Aug 01, 2016
On Defense
On Defense
Protection strategies.
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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 troops from such aggressive foes as heat, noise, and fatigue.  She also learns how bad odors were once considered a secret weapon.

Jul 25, 2016
Musical Universe
Musical Universe
Sounds of silence.
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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 experiment, has detected gravitational waves caused by the collision of massive black holes, a brief shaking of spacetime that can be translated into a short squeal. 

We listen to the chirp of black holes crashing into each other and wonder: could the universe contain more than individual sounds, but have actual musical structure? 

Jul 18, 2016
Raising the Minimum Age
Raising the Minimum Age
How far can technology take us?
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ENCORE  We all try to fight it: the inexorable march of time. The fountain of youth doesn’t exist, and all those wrinkle creams can’t help. But modern science is giving us new weapons in the fight against aging. So how far are we willing to go?

Hear when aging begins, a summary of the latest biotech research, and how a lab full of youthful worms might help humans stay healthy.

Jul 11, 2016
Microbes: Resistance is Futile
Microbes: Resistance is Futile
You are your microbiome.
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ENCORE  You are what you eat. Whether you dine on kimchi, carnitas, or corn dogs determines which microbes live in your stomach. And gut microbes make up only part of your total microbiome.

Find out how your microbes are the brains-without-brains that affect your health and even your mood. Also, why you and your cohorts are closer than you thought: new research suggests that you swap and adopt bugs from your social set.

Plus, the philosophical questions that are arise when we realize that we have more microbial DNA than human DNA.

Jul 04, 2016
Science Fiction True
Science Fiction True
Becoming reality?
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ENCORE  Don’t believe everything you see on TV or the movies. Science fiction is just a guide to how our future might unfold. It can be misleading, as anyone who yearns for a flying car can tell you. And yet, sometimes fantasy becomes fact. Think of the prototype cellphones in Star Trek.

Jun 27, 2016
Skeptic Check: The Me in Measles
Skeptic Check: The Me in Measles
Evaluating risk.
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ENCORE  Wondering whether to vaccinate your children? The decision can feel like a shot in the dark if you don’t know how to evaluate risk. Find out why all of us succumb to the reasoning pitfalls of cognitive and omission bias, whether we’re saying no to vaccines or getting a tan on the beach.

Plus, an infectious disease expert on why it may take a dangerous resurgence of preventable diseases – measles, whooping cough, polio – to remind us that vaccines save lives.

Jun 20, 2016
Elements Never Forget
Elements Never Forget
Periodic appearances.
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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 modern-day helium shortage. 

But it’s not all a disappearing act: be thankful that oxygen showed up in our atmosphere a few billion years ago.  Meanwhile, atom smashers have recently produced some new elements.  Their appearance was brief, but long enough to fill out the periodic table.

Jun 13, 2016
Surviving the anthropocene
Surviving the Anthropocene
The planet we made.
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ENCORE  The world is hot, and getting hotter. But higher temperatures aren’t the only impact our species is having on mother Earth. Urbanization, deforestation, and dumping millions of tons of plastic into the oceans … these are all ways in which humans are leaving their mark.

So are we still in the Holocene, the geological epoch that started a mere 11,000 years ago at the end of the last ice age? Some say we’ve moved on to the age of man – the Anthropocene.

It’s the dawn of an era, but can we survive this new phase in the history of our planet?

Jun 06, 2016
How to talk to aliens
How to Talk to Aliens
Broadcasting to space.
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ENCORE  “Dear E.T. …” So far, so good. But now what? Writing is never easy, but what if your task was to craft a message to aliens living elsewhere in the universe, and your prose would represent all humankind? Got writer’s block yet?

What to say to the aliens was the focus of a recent conference in which participants shifted their attentions away from listening for extraterrestrial signals to transmitting some. In this show, we report on the “Communicating Across the Cosmos” conference held at the SETI Institute in December 2014.

May 30, 2016
Caught in a Traps
Caught in a Traps
Volcanos and quakes.
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“Locked and loaded” is how one scientist recently described the San Andreas fault.  Find out when this famous west-coast rift might cause “the big one;” also, the state of early earthquake warning systems.

Plus, another sign of our planet’s unceasing turmoil: volcanos!  Could the eruption that produced the Deccan Traps, and not a rock from space, have been the nail in the coffin for the dinosaurs?  One seismologist shares new evidence about some suspicious timing.

May 23, 2016
Adam Savage
Skeptic Check: Busting Myths with Adam Savage
But is it science?
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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 questions and urban legends tested by the MythBusters team in front of the camera.

Now that the series has ended after a 16 year run, co-host Adam Savage tells us how it all began, how he and Jamie Hyneman walked the line between science and entertainment, and why he considers himself a scientist but not a “skeptic.”

May 16, 2016
Science Fiction
Science Fiction
Why it works.
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No one knows what the future will bring, but science fiction authors are willing to take a stab at imagining it.  We take our own stab at imagining them imagining it.  Find out why the genre of science fiction is more than a trippy ride through a bizarre, hi-tech world, but a way to assess and vote on our possible shared future. 

May 09, 2016
Shocking Ideas
Shocking Ideas
Novel uses for electricity.
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ENCORE  Electricity is so 19th century. Most of the uses for it were established by the 1920s. So there’s nothing innovative left to do, right? That’s not the opinion of the Nobel committee that awarded its 2014 physics prize to scientists who invented the blue LED.

Find out why this LED hue of blue was worthy of our most prestigious science prize … how some bacteria actually breathe rust … and a plan to cure disease by zapping our nervous system with electric pulses.

May 02, 2016
Living Computers
Living Computers
Erasing the line between biology and technology.
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ENCORE  It’s the most dramatic technical development of recent times: Teams of people working for decades to produce a slow-motion revolution we call computing. As these devices become increasingly powerful, we recall that a pioneer from the nineteenth century – Ada Lovelace, a mathematician and Lord Byron’s daughter – said they would never surpass human ability. Was she right?

We consider the near-term future of computing as the Internet of Things is poised to link everything together, and biologists adopt the techniques of information science to program living cells.

Apr 25, 2016
Skeptic Check: Your Inner Lab Coat
Skeptic Check: Your Inner Lab Coat
Think like a scientist.
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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 100,000 years ago may have been the first scientists, and what we can learn from about deductive reasoning from today’s African trackers.

Also, the author of a book on teaching physics to your dog provides tips for unleashing your inner scientist, even if you hated science in school.

Apr 18, 2016
Moving Right Along
Moving Right Along
The universe in motion.
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ENCORE  You think your life is fast-paced, but have you ever seen a bacterium swim across your countertop? You’d be surprised how fast they can move.

Find out why modeling the swirl of hurricanes takes a roomful of mathematicians and supercomputers, and how galaxies can move away from us faster than the speed of light.

Also, what happens when we try to stop the dance of atoms, cooling things down to the rock bottom temperature known as absolute zero.

Apr 11, 2016
Surfeit of the Vitalist
Surfeit of the Vitalest
The diversity of evolution.
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ENCORE  In the century and a half since Charles Darwin wrote his seminal On the Origin of the Species, our understanding of evolution has changed quite a bit. For one, we have not only identified the inheritance molecule DNA, but have determined its sequence in many animals and plants.

Evolution has evolved, and we take a look at some of the recent developments.