CrowdScience - Which is better: Optimism or pessimism?

In most cultures, the soundtrack to our lives is one of optimism. We are told to aim for the stars, dream big and believe that tomorrow will definitely be a better day. But why do so many people subscribe to the cult of 'glass half full' when life’s hardships should make any reasonable person a bit more wary?

Listener Hannah from Germany - a self-described pessimist - is intrigued as to whether the optimistic way of life is really the best way to be. Taking on the challenge is Marnie Chesterton, who finds out why 80% of the population have an optimism bias and how the ability to hope and take risks may have helped the human species get where it is today. She also meets a man who pushes the optimistic outlook to its very limits - Base jumping world champion, Espen Fadnes. Listener Hannah on the other hand looks into the psychology of pessimism to find out if there are any advantages to her less rose-tinted view on life - and whether the culture we grow up in shapes how realistically we see the world.

Producer: Caroline Steel Presentet: Marnie Chesterton

Contributors: Espen Fadnes – Freefall professional Tali Sharot – Professor of neuroscience, UCL Julie Norem - Professor of psychology, Wellesley College Jeanne Tsai - Professor of psychology, Stanford

(Image: Two arrows, one with a sad smiley and the other with happy smiley, pointing in opposite directions. Credit: Getty Images)

Science In Action - Deliberately doomed dart

DART is a space mission designed to hit a distant asteroid and knock it slightly out of orbit. It’s a test mission, a pilot project for a way of potentially protecting the earth from a stray asteroid. We hear from mission coordinators Nancy Chabot and Andy Rivkin, both from the Applied Physics Labs, APL, of Johns Hopkins University.

A new kind of Covid-19 vaccine has successfully undergone preliminary tests. Tuebingen University’s Juliane Walz tells us about how it hopes to stimulate a longer lasting protective effect against the virus than current vaccines.

And Haley Randolph of Chicago University sheds light on how our ancient ancestors’ exposure to viruses influences our susceptibility today.

Historian Robert Schulmann gives us an insight into the significance of research notes by Albert Einstein and Michele Besso. Sold at auction in France the notes give an insight into the collaboration between the two scientists which led to much of what we now understand about the fundamentals of physics.

Image: NASA's DART Spacecraft Launches in World's First Planetary Defense Test Mission Credit: NASA/Bill Ingalls

Presenter: Roland Pease Producer: Julian Siddle

Short Wave - How To Choose A Health Insurance Plan

Health insurance can be tremendously confusing, with its complexity, jargon and acronyms. But putting in a bit of time to learn what these health insurance terms mean can empower you to better understand what signing on to a plan might mean for your budget and your health.

Whether you're picking a plan for the first time, thinking of changing a plan, or want to see your options, NPR health correspondent, Selena Simmons-Duffin offers tips for browsing and choosing a health insurance plan. This episode is brought to Short Wave in conjunction with our colleagues at Life Kit.

What other tips and tricks would you like from Short Wave? E-mail us at shortwave@npr.org.

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Short Wave - Celebrate The Holidays Safely This Pandemic

Millions of Americans are planning to travel this week and gather inside for Thanksgiving — many in groups of 10 or more. At the same time, COVID-19 cases are rebounding. NPR correspondent Allison Aubrey's been talking to experts to find out how to gather in-person as safely as possible and minimize a new surge.

Read the CDC's tips on gathering for the holidays: https://www.cdc.gov/coronavirus/2019-ncov/daily-life-coping/holidays/celebrations.html

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Short Wave - A Mission To Redirect An Asteroid

In movies, asteroids careening towards Earth confront determined humans with nuclear weapons to save the world! But a real NASA mission to change the course of an asteroid (one not hurtling towards Earth), the Double Asteroid Redirection Test (DART), is about to launch.

NPR science correspondent Nell Greenfieldboyce joins the show to talk about what it takes to pull off this mission and how it could potentially protect the Earth in the future from killer space rocks.

Email the show at shortwave@npr.org.

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Unexpected Elements - The end for coal power?

The political message from the COP meeting was a fudge over coal, but what does the science say? Surprisingly India seems to be on track to switch away from coal to renewables. We explore the apparent contradiction with Lauri Myllyvirta of the thinktank Centre for Research on Energy and Clean Air.

Also a synchrotron for Africa, how such a project would give a boost to scientific development across the continent, with Marielle Agbahoungbata from the X-tech Lab in Seme City in Benin. Moriba Jah, who leads the Computational Astronautical Sciences and Technologies Group, at the University of Texas, in Austin, tells us what he saw when an exploding Russian satellite sent a shower of debris into the path of the International Space Station.

And the animals that carry SARS-Cov-2, an analysis from Barbara Han of the Cary Institute of Ecosystem Studies in New York shows there are many more than previously thought.

Image: A coal-fired power station in Nanjing in east China Credit: Feature China/Barcroft Media via Getty Images

Presenter: Roland Pease Producer: Julian SiddleThe political message from the COP meeting was a fudge over coal, but what does the science say? Surprisingly India seems to be on track to switch away from coal to renewables. We explore the apparent contradiction with Lauri Myllyvirta of the thinktank Centre for Research on Energy and Clean Air.

Also a synchrotron for Africa, how such a project would give a boost to scientific development across the continent, with Marielle Agbahoungbata from the X-tech Lab in Seme City in Benin. Moriba Jah, who leads the Computational Astronautical Sciences and Technologies Group, at the University of Texas, in Austin, tells us what he saw when an exploding Russian satellite sent a shower of debris into the path of the International Space Station.

And the animals that carry SARS-Cov-2, an analysis from Barbara Han of the Cary Institute of Ecosystem Studies in New York shows there are many more than previously thought.

And, Cats started hanging out with humans thousands of years ago, and nowadays these fluffy, lovable pets are found in many of our homes. But there’s no doubt lots of them still have keen hunting instincts - witness all the birds and small mammals they kill each year.

CrowdScience listener Rachel started wondering whether her cat Eva could fend for herself while watching her uncoordinated swipes at a toy on a string, and seeing her fall off the sofa. Even though Eva was once a stray, she now lives entirely indoors, and it's hard to imagine her holding her own back on the mean streets. But could this pampered pet recover her survival instincts? Or would she go hungry, or fall foul of other cats or predators?

Cat behaviour expert Roger Tabor is on hand with answers. His pioneering ‘cat-navs’ shine a light on what cats get up to inside and outside the home: we meet one of his subjects, a tiny cat with a fierce personality. Roger explains how a cat’s survival toolkit depends on their sex, breed, and above all their early life. Environment matters, too, so in Japan, where Rachel and her pet cat live, we visit a cat shelter to learn about the day-to-day challenges stray cats face

And just how ‘domestic’ are our cats, anyway? How different are they from their wildcat cousins, and how did they come to be our companions in the first place? It turns out beguiling humans might be even more of a survival trick than hunting.

Image: A coal-fired power station in Nanjing in east China Credit: Feature China/Barcroft Media via Getty Images

CrowdScience - Would my cat survive in the wild?

Cats started hanging out with humans thousands of years ago, and nowadays these fluffy, lovable pets are found in many of our homes. But there is no doubt lots of them still have keen hunting instincts - witness all the birds and small mammals they kill each year.

CrowdScience listener Rachel started wondering whether her cat Eva could fend for herself while watching her uncoordinated swipes at a toy on a string, and seeing her fall off the sofa. Even though Eva was once a stray, she now lives entirely indoors, and it is hard to imagine her holding her own back on the mean streets. But could this pampered pet recover her survival instincts? Or would she go hungry, or fall foul of other cats or predators?

Cat behaviour expert Roger Tabor is on hand with answers. His pioneering ‘cat-navs’ shine a light on what cats get up to inside and outside the home; we meet one of his subjects, a tiny cat with a fierce personality. Roger explains how a cat’s survival toolkit depends on their sex, breed, and above all their early life. Environment matters, too, so in Japan, where Rachel and her pet cat live, we visit a cat shelter to learn about the day-to-day challenges stray cats face.

And just how ‘domestic’ are our cats, anyway? How different are they from their wildcat cousins, and how did they come to be our companions in the first place? It turns out beguiling humans might be even more of a survival trick than hunting.

Presenter: Melanie Brown Producer: Cathy Edwards

Contributors: Roger Tabor – Chartered Biologist and Cat Behaviourist Jamie Baker – Head Keeper, Battersea Park Children’s Zoo Dr Eva-Maria Geigl – Research Director, CNRS (French National Centre for Scientific Research) Susan Roberts and Cheryl Nodhturft-Mori – Japan Cat Network

(Image: Cat in Lion costume. Credit: Getty Images)

Short Wave - Two Sides Of Guyana: A Green Champion And An Oil Producer

For Guyana the potential wealth from oil development was irresistible — even as the country faces rising seas. Today on the show, Emily Kwong talks to reporter Camila Domonoske about her trip to Guyana and how it's grappling with its role as a victim of climate change while it moves forward with drilling more oil.

For more of Camila's reporting and pictures from her visit, check out "Guyana is a poor country that was a green champion. Then Exxon discovered oil." <<https://n.pr/3nBLMHT>>

You can follow Emily on Twitter @EmilyKwong1234 and Camila @CamilaReads. Email Short Wave at ShortWave@NPR.org.

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Science In Action - The end for coal power?

The political message from the COP meeting was a fudge over coal, but what does the science say? Surprisingly India seems to be on track to switch away from coal to renewables. We explore the apparent contradiction with Lauri Myllyvirta of the thinktank Centre for Research on Energy and Clean Air.

Also a synchrotron for Africa, how such a project would give a boost to scientific development across the continent, with Marielle Agbahoungbata from the X-tech Lab in Seme City in Benin. Moriba Jah, who leads the Computational Astronautical Sciences and Technologies Group, at the University of Texas, in Austin, tells us what he saw when an exploding Russian satellite sent a shower of debris into the path of the International Space Station.

And the animals that carry SARS-Cov-2, an analysis from Barbara Han of the Cary Institute of Ecosystem Studies in New York shows there are many more than previously thought.

Image: A coal-fired power station in Nanjing in east China Credit: Feature China/Barcroft Media via Getty Images

Presenter: Roland Pease Producer: Julian Siddle

Short Wave - Bee Superfood: Exploring Honey’s Chemical Complexities

Honey bees know a lot about honey, and humans are starting to catch up. Scientists are now looking at how the chemicals in honey affect bee health. With the help of research scientist Bernarda Calla, Short Wave producer Berly McCoy explains the chemical complexities of honey, how it helps keep honey bees resilient, and what role it may play in saving the bees.

Read Berly's full story on honey in Knowable Magazine: https://bit.ly/3qIXRN3

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