Category: ScienceNews

Rocky Mountain Spotted Fever is one of the deadliest tickborne diseases in the United States, often killing people within about a week if left untreated. At one point, the San Carlos Apache Reservation had rates of infection 150 times the national average. But now, they've achieved a huge milestone — no deaths from the disease in at least five years. NPR science correspondent Pien Huang and producer Megan Lim visited the reservation to see the program that led to their success.

Read Pien's full story here.

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The U.S. tested nuclear weapons until the early 1990s. Since then, scientists have been using supercomputers and experiments to simulate nuclear test detonations, without detonating any nukes. But there are signs the world's nuclear powers may be readying to test again: Russia, China and the U.S. are all upgrading their nuclear test sites.

NPR science correspondent Geoff Brumfiel was among a small group of journalists allowed to tour an underground laboratory where this research happens.

Read more of science correspondent Geoff Brumfiel's reporting here.

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For people with two hands, one is usually dominant. On a molecular level, life takes this to the extreme. All of the DNA in earthly living things twists to the right, whereas the protein building blocks favor a kind of left-handed chemistry. But in recent years, scientists have worked toward a kind of mirror version of life. The technology to make mirror life likely won't exist for at least a decade. Still, a group of concerned scientists published a 299-page technical report calling for a stop to the science. New York Times science columnist Carl Zimmer explains how a mirror microbe could wreak havoc on life on Earth in the future.

Check out the full technical report and Carl's full article.

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Some of our biggest achievements happen in the first years of our lives. Taking our first steps, picking up a complex language from scratch, and forming relationships with some of the most important people we’ll ever meet. But when we try to remember this period of great change, we often draw a blank.

After losing his Dad aged four, CrowdScience listener Colin has grappled with this. Why can’t he recall memories of such a monumental figure in his life, yet superficial relationships from his teens remain crystal clear in his mind? Colin takes presenter Marnie Chesterton to visit some of the significant locations of his childhood, places he would have spent many hours with his late father; and he recounts his earliest memories.

On this trip down memory lane, Marnie discovers the psychological reason behind our lack of early childhood memories comes down to a phenomenon known as infantile amnesia. Tomás Ryan, neuroscientist at Trinity College Dublin, discusses some of the theories behind this universal experience, and Sarah Power from the Max Planck Institute for Human Development discusses her groundbreaking study exploring this form of forgetting in real time. Elaine Reese from the University of Otago digs into how our environment and culture can influence the age of our earliest memories, and why some of the first things we remember might not be the big, huge events you’d expect. And we hear about fascinating new insights from animal studies that hint these memories could still be lurking inside our heads...

Presenter: Marnie Chesterton Producer: Julia Ravey Content Editor: Cathy Edwards Production Co-ordinators: Ishmael Soriano & Josie Hardy Technical producer: Emma Harth

(Photo: Marnie Chesterton and CrowdScience listener, Colin, on the swings in Belfast.)

French president Emmanuel Macron recently announced that Leonardo da Vinci’s famous Mona Lisa painting will be moved to her very own room at the Louvre, as part of a plan to renovate the iconic museum.

And that got us thinking. Once the crowds have gone home every night, the Mona Lisa will be all by herself, with no other paintings to smile at enigmatically across the room.

So this week, we are talking all things isolation. We start things off by finding out about a key cognitive skill that may have been impacted by COVID-19 lockdowns.

Next, we discover more about the history of loneliness and the impact it can have on your health, before discussing what evolutionary roads isolated island species will go down.

Plus, we’re joined by Professor Jonathan Harrington from the University of Munich. He reveals how our accents can be affected by isolation. That, plus many more Unexpected Elements.

Presenters: Marnie Chesterton, with Christine Yohannes and Affelia Wibisono. Producers: Alice Lipscombe-Southwell, with Dan Welsh, William Hornbrook and Imaan Moin.

What do large crowds of people and water have in common? They both act like fluids. When crowds cheer, sway and clump together, the movements look like ripples of water. Researchers hope insights from physics like this one could help officials and engineers create safer crowds at festivals.

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The mystery swarm of small earthquakes near the island of Santorini beg for more data collection. Also, the National Oceanic and Atmospheric Administration (NOAA) in the US goes offline and whales learn song like kids learn language.

Presenter: Roland Pease Producer: Alex Mansfield Production co-ordinator: Josie Hardy

(Photo: Greece earthquake. Credit: AFP)

For a long time, microbes like the ones in Yellowstone's hot springs were studied in isolation. Molecular ecologist Devaki Bhaya says we should be studying them in community. Here's why.

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Plus, if you liked this episode, check out our episode on the last universal common ancestor in the tree of life.

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Black holes are notorious for gobbling up, well, everything. They're icons of destruction, ruthless voids, ambivalent abysses from which nothing can return — at least, according to pop culture. But black holes have another side: Astrophysicists have seen powerful jets, sometimes millions of light-years long, shooting out of supermassive black holes – including the one at the center of our own galaxy. So today, we're getting to know the other side of black holes, and the powerful role they may play in creating and shaping the cosmos.

Read more about the Blandford-Znajek process.

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Everyone, we assume, wants to be their best person. Few of us, perhaps, none, hits all their marks in this pursuit even if the way toward the goal is generally apparent. If you want to know how to do a better job hitting those marks, whether its walking 10,000 steps, learning Esperanto, or quitting smoking, a good person to consult would be Katy Milkman. Working at the nexus of economics and psychology, Milkman – the James G. Dinan Professor at The Wharton School of the University of Pennsylvania and co-founder of the Behavior Change for Good Initiative at Penn – studies the almost alchemical process of turning good intentions into solid actions.

In this Social Science Bites podcast, she details for interviewer David Edmonds some of the biases and some of the critical thinking processes that both define and then overcome the obstacles to changing our behavior. These range from concepts with such academic names as present bias and temptation bundling to the more colloquial ‘what the hell effect’ and its antidote, the emergency reserve. But the point of her research – especially as it gets translated to the public through her podcast Choiceology or her 2021 book How to Change: The Science of Getting from Where You Are to Where You Want to Be – is to find practical ways to change yourself.

For example, she explains that “it's important for goals to be measurable and achievable, although they should be a stretch. You know, if your goal is ‘exercise more,’ how can you measure that? How could you even set a commitment device, for instance? … It's also important to have a plan of, sort of, when will I do it, where will I do it, how will I get there. These are called “implementation intentions.” I think the most important part of them is they associate a cue with the action. So just like an actor needs a cue to know when to say their lines, we need to not forget to take action on our goals.”

Her influence in turn is felt practically. Choiceology, for example, is sponsored by the brokerage house Charles Schwab, and Milkman has been a consultant for organizations ranging from the U.S. government and Walmart to 24 Hour Fitness and the American Red Cross. She is a former president of the Society for Judgment and Decision Making and a fellow of the Association for Psychological Science.

We'd love to hear your feedback on the Social Science Bites series. Please let us know your thoughts on Social Science Bites by taking our short survey, and you'll be entered to win one of five free copies of the Social Science Bites book, Understanding Humans.