Category: ScienceNews

The Moon and Earth are drifting gradually further apart. Every year the gap between them increases by a few centimetres. We know that the Moon’s gravity has an important effect on Earth - from controlling the tides to affecting the planet’s rotation - but slowly, imperceptibly, over billions of years, that influence will diminish as the Moon moves away. For CrowdScience listener Tony in the UK that idea poses another question. What if we were to look back in time? What effects did the Moon have when it was closer to Earth? Would it counteract the planet’s gravity more so that, at the time of the dinosaurs, a Brontosaurus would weigh a little less that it would if it existed now? It’s an intriguing question. And, given that it involves both the Moon AND dinosaurs, it’s one that’s got presenter Anand Jagatia really excited!

Anand begins his journey on Brighton beach on the South coast of the UK. He’s there to watch the full Moon rise - and get a few insights on Tony’s question - from astronomer Darren Baskill and astrophotographer (and cellist) Ivana Perenic.

Anand talks to Darren about the influence of the Moon’s gravity on Earth today. As they stand on the beach, with the sea lapping at their feet, they can certainly see its effect on the ocean tides. But did you know that the Moon also causes tides on the land as well? Every time it’s overhead the ground you’re standing on is higher by a few centimetres.

Professor Neil Comins, author of the book What If the Moon Didn’t Exist, explains why the tides are the reason the Moon is moving away from Earth – and it has been ever since it was first formed.

And how was it formed anyhow? We turn back time with Prof. Sara Russell from the Natural History Museum in London to discover one of the most dramatic events in the early history of our solar system... when two worlds collided.

And, of course, it helps to know what a dinosaur weighed in the first place. Anand turns to paleontologist Nicolas Campione, who’s been puzzling over the most accurate way to calculate the bulk of a Brontosaurus.

Contributors: Dr. Darren Baskill, Astronomer, University of Sussex, UK Ivana Perenic, Astrophotographer Dr. Nicolas Campione, Paleontologist, University of New England, Australia Prof. Sara Russell, Cosmic Mineralogist, Natural History Museum, UK Prof. Neil Comins, Astronomer, University of Maine, USA

Presenter: Anand Jagatia Producer: Jeremy Grange Editor: Cathy Edwards Production Co-ordinator: Ishmael Soriano Studio Manager: Jackie Margerum

(Image: Tyrannosaurus Rex and Spinosaurus in front of the moon - stock photo Credit: MR1805via Getty Images)

Join Marnie Chesterton and her panel of science journalists Chhavi Sachdev and Jes Burns, on their Oregon science mission. We investigate building materials of the future, from creative cement alternatives to buildings made of wood, and hear from forest scientist Sarah Jovan about how one humble plant has made huge changes to Portland's air quality.

Plus, we make waves with a new wave energy testing facility, uncover the benefits (or costs) of bamboo alternatives and our panellist fight against the clock to pitch what they think should take the crown of Oregon's Coolest Science. And, we hear from our studio audience about how they experience the world and one of them even volunteers to do the fact file. Recorded at Oregon Public Broadcasting (OPB) studios in Portland Oregon. Presenter: Marnie Chesterton Producer: Julia Ravey Production team: Alex Mansfield and Cathy Edwards Studio engineer: Kate Barker and Darren Wardrobe

Governors across the southeastern United States have declared statewide states of emergency as Hurricane Helene continues its ascent. After forming in the northwestern Caribbean Sea Tuesday, Helene escalated from a tropical storm, then to a cyclone, and finally to a Category 4 hurricane by the time it made landfall late Thursday night. We talk to hurricane climatologist Jill Trepanier about how a storm tropical storm system rapidly intensifies into a major hurricane, the impact of a changing climate on future storms — and why the devastation doesn't stop at the shore.

Follow local updates on Hurricane Helene.

Want to know more about the scientific underpinning of serious weather events? Email us at shortwave@npr.org — we might cover it on a future episode!

Learn more about sponsor message choices: podcastchoices.com/adchoices

NPR Privacy Policy

Valerie Trouet of the University of Arizona tells us how tree-ring data has been used to show how the jet stream has shaped extreme weather in Europe for centuries, influencing harvests, wildfires and epidemics.

Monash University’s Andy Tomkins discusses how, around 460 million years ago, the Earth was briefly encircled by a ring of dust – like Saturn is today, and that the resulting temporary astronomical shade may have cooled the planet. Andy proposes that this dust came from an asteroid which had a close encounter with our planet.

And the cell biology of choking on your drink with Laura Seeholzer from the University of California, San Francisco. Laura has won the 2024 Eppendorf & Science Prize for Neurobiology recognising her work on the discovery of how neuroendocrine cells protect our airways.

Presenter: Roland Pease Producer: Jonathan Blackwell Production co-ordinator: Andrew Rhys Lewis

(Photo: Members of the research team collected tree ring samples at various locations in Europe, including the Balkan region. Credit: Courtesy of Valerie Trouet)

Around 2% of the global population struggles with obsessive compulsive disorder, or OCD. That's roughly 163 million people who go through cycles of obsessions – unwanted intrusive thoughts, images or urges – and compulsions, or behaviors to decrease the distress caused by these thoughts. In movies and TV, characters with OCD are often depicted washing their hands or obsessing about symmetry. Dr. Carolyn Rodriguez says these are often symptoms of OCD, but they're not the only ways it manifests – and there's still a lot of basics we have yet to understand. That's why Carolyn looks to include more populations in research and find new ways to treat OCD.

Questions about the brain? Email us at shortwave@npr.org – we'd love to hear your ideas!

Learn more about sponsor message choices: podcastchoices.com/adchoices

NPR Privacy Policy

At the beginning of the universe, annihilation reigned supreme. Equal amounts of matter and antimatter collided. There should have been nothing left. And, yet, here we all are. Matter won out. The question is: why? Scientists are probing the mysteries of a ghostly subatomic particle for answers. To do it, they'll need to shoot a beam of them 800 miles underground.

Interested in more mysteries of the universe? Email us at shortwave@npr.org.

Learn more about sponsor message choices: podcastchoices.com/adchoices

NPR Privacy Policy

Electric vehicle batteries will all, eventually, reach the end of their lives. When that happens, they should be recycled. But what breakthroughs could make that happen cleanly, efficiently — and close to home? Today, business correspondent Camila Domonoske takes us on a tour of one company trying to crack the EV battery recycling puzzle — to learn what this case study can tell us about the larger battery picture. Plus, why recycling is kind of like wresting with Lego bricks.

Read more of Camila's reporting on EV battery recycling.

Have a specific science story you want us to dig into? Email us at shortwave@npr.org and we might cover your idea on a future episode!

Learn more about sponsor message choices: podcastchoices.com/adchoices

NPR Privacy Policy

Hey, Short Wavers! Today we're sharing an excerpt of the new NPR podcast How To Do Everything.

How To Do Everything is half advice show, half survival guide, and half absurdity-fest — and it's not made by anyone who understands math. In fact, it comes from the same team that brings you NPR's news quiz Wait, Wait... Don't Tell Me!

We think you'll like their vibe, and we especially think you'll like this excerpt from their recent episode. It features astronaut Frank Rubio, who holds the record for the longest time spent in space. How To Do Everything hosts Mike Danforth and Ian Chillag ask what advice he has for two NASA astronauts whose mission to the International Space Station was recently extended by ... a lot of time. Listen to find out how astronauts do laundry in space, get a haircut and blow out birthday candles.

For more episodes of How To Do Everything, follow the show on Apple or Spotify.

How To Do Everything is available without sponsor messages for supporters of Wait Wait Don't Tell Me+, who also get bonus episodes of Wait Wait Don't Tell Me featuring exclusive games, behind-the-scenes content, and more. Sign up and support NPR at plus.npr.org.

Learn more about sponsor message choices: podcastchoices.com/adchoices

NPR Privacy Policy

18 is the age of majority, or maturity, in most countries around the world. Depending where you live, it might be when you can vote, buy alcohol, or get married. But what's so special about 18 that makes it the beginning of adulthood? CrowdScience listener Lynda didn't feel very mature back then. She recalls a difficult decision that made her wonder what science has to say about when we’re truly grown up. How developed are we, physically, mentally and emotionally, by the age of 18? And how much does this differ between people, or from culture to culture? Presenter Caroline Steel digs around for answers with the aid of neuroscientist Sarah-Jayne Blakemore, biological anthropologist Barry Bogin, and cultural anthropologist Bonnie Hewlett. And even some teenagers. Contributors: Barry Bogin, Emeritus Professor of Biological Anthropology, Loughborough University Sarah-Jayne Blakemore - Professor of Psychology and Cognitive Neuroscience at the University of Cambridge Professor Bonnie Hewlett - Associate Professor, Cultural Anthropology, WSU Vancouver

Presenter: Caroline Steel Producer: Richard Walker Editor: Cathy Edwards Production Co-Ordinator: Ishmael Soriano Studio Manager: Neva Missirian

This week, Apple releases the new iPhone 16. It's new, it's shiny, and tech-nerds will be queueing round the block for a chance to snap it up. But why? We look at the science behind why we get so dazzled with new and shiny things.

We hear about the psychology behind our magpie tendencies, and find out it might all be connected to one of our deepest evolutionary drives: for clean, fresh, sparkling water.

And we find out what the shiniest thing in the natural world is. An extraordinary blue berry with some mesmerising visual qualities.

We find out about diamonds made from your dead pets. And, we dissect the science behind the first flush of love. Why do we get so obsessed with a new partner? And why doesn't the feeling last?

Presenter: Caroline Steel, with Kai Kupferschmidt and Phyllis Mwatee Producer: Harrison Lewis, with Emily Knight, Noa Dowling and Elizabeth Barsotti Sound engineer: Searle Whittney