The World, the Universe and Us – Details, episodes & analysis

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The World, the Universe and Us

New Scientist

Science

News

Education

Frequency: 1 episode/5d. Total Eps: 460

From the evolution of intelligent life, to the mysteries of consciousness; from the threat of the climate crisis to the search for dark matter, The world, the universe and us is your essential weekly dose of science and wonder in an uncertain world. Hosted by journalists Dr Rowan Hooper and Dr Penny Sarchet and joined each week by expert scientists in the field, the show draws on New Scientist’s unparalleled depth of reporting to put the stories that matter into context. Feed your curiosity with the podcast that will restore your sense of optimism and nourish your brain. For more visit newscientist.com/podcasts

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Weekly: The gruesome story of the Viking skeleton found in a well

Season 1 · Episode 273

Friday, October 25, 2024 • Duration 22:17

Episode 273 The mystery of “Well Man”, an ancient cold case, has just been solved. A Norse saga tells that in 1197, in the midst of a Viking raid, warriors dumped a body in a well inside a castle. Over 800 years later, archeologists recovered a body from that very well – but didn’t have the technology to show it was the man from the saga… until now. Some welcome good news about the climate. Energy imbalance, a key measure of global warming, has been rising fast, sparking fears that warming is accelerating faster than models predicted. But new findings suggest those fears are overblown and that there is hope yet. Birth control pills may shrink your brain (a small amount). After experiencing mood and physical changes after coming off the pill, one neuroscientist discovered very little had been done to understand the impact of hormonal birth control on the brain. So she scanned her own brain 75 times over several months while on and off the pill. The results are in. Hosts Rowan Hooper and Chelsea Whyte discuss with guests James Woodford, Michael Martin, Michael Le Page, Ben Sandersen, Grace Wade and Carina Heller. To read more about these stories, visit https://www.newscientist.com/ Learn more about your ad choices. Visit megaphone.fm/adchoices

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Weekly: SpaceX makes history with Starship rocket; bringing thylacines back from extinction

Season 1 · Episode 272

Friday, October 18, 2024 • Duration 22:11

Episode 272 SpaceX has made history with its Starship rocket, the largest rocket ever built and one that’s hoped to eventually take us to Mars. In its fifth test, SpaceX successfully returned the rocket’s booster back to the launchpad and caught hold of it – an engineering feat of great finesse. But how close are we to putting crew on the rocket–- and when will it take humanity to the Red Planet? Leah-Nani Alconcel, spacecraft engineer at the University of Birmingham, joins the conversation. We might be closer than ever before to bringing Tasmanian tigers (thylacines) back from extinction. That’s if de-extinction company Colossal is right about their latest discovery, of a nearly complete genome of the thylacine. Is this the breakthrough it seems to be? And can we truly bring back thylacines as they once were? Brain scans have revealed that bullying has a physical effect on the structure of the brain. Young people who are bullied see changes in various brain regions and it seems to impact male and female brains differently. Are these changes permanent? And is this cause to take bullying more seriously? The “very fabric of life on Earth is imperilled.” That’s according to the latest annual State of the Climate report. Thirty-five “planetary vital signs” have been assessed by researchers and the outlook is bleak. But among all the worrying climate records we’ve broken there is hope. Hear from study author Tom Crowther of ETH Zurich. Hosts Rowan Hooper and Chelsea Whyte discuss with guests Leah Crane, Leah-Nani Alconcel, Michael Le Page, Alexandra Thompson, James Dinneen and Tom Crowther. To read more about these stories, visit https://www.newscientist.com/ Hosted on Acast. See acast.com/privacy for more information. Learn more about your ad choices. Visit megaphone.fm/adchoices

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Weekly: The case for Arctic geoengineering; world’s oldest cheese

Season 1 · Episode 269

Friday, September 27, 2024 • Duration 25:05

Episode 269 Could we re-freeze the Arctic… and should we? The Arctic is losing ice at an alarming rate and it’s too late to save it by cutting emissions alone. Geoengineering may be our only hope. A company called Real Ice has successfully tested a plan to artificially keep the region cold - but what are the consequences and will it work on the scale we need? Octopuses and fish have been found hunting together in packs in an unexpected display of cooperation. Not only do the fish scout out potential prey, they even signal to the octopuses to move in for the kill. And a fish doesn’t prove helpful? They get punched. The world’s oldest cheese has been found in China - and it’s 3,500 years old. As we get a fascinating look into the fermenting habits of ancient humans, find out how modern day fermentation is being repurposed to help us create biofuels, break down microplastics and more. We hear from Tom Ellis, professor of synthetic genome engineering at Imperial College London. Our bodies are littered with microplastics - they’re in our livers, kidneys, guts and even our olfactory bulb. How worried should we be? Microplastics have been linked to some pretty serious health consequences - but are they the cause? Hosts Rowan Hooper and Sophie Bushwick discuss with guests Madeleine Cuff, Michael Le Page and Grace Wade. To read more about these stories, visit https://www.newscientist.com/ Get your tickets for New Scientist Live: https://www.newscientist.com/nslivepod Hosted on Acast. See acast.com/privacy for more information. Learn more about your ad choices. Visit megaphone.fm/adchoices

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CultureLab: Orbital - A love letter to Earth from the International Space Station, with Samantha Harvey

Tuesday, November 14, 2023 • Duration 23:32

As astronauts look down on Earth from space, the experience is often life-altering. The “pale blue dot” looks fragile from way up there. And in the novel Orbital, we get to see our planet from the perspective of astronauts aboard the International Space Station, giving us a glimpse into why the distant view shifts their perspectives so dramatically. The book follows the team of astronauts as they observe Earth, collect meteorological data, conduct scientific experiments and test the limits of the human body. But author Samantha Harvey says she hopes Orbital is as much a painting as it is a novel, writing in expressive prose to capture the epic vistas witnessed from space each day. From glaciers and deserts, to the peaks of mountains and the swells of oceans – and even the destructive force of an intensifying typhoon. In this episode, Rowan Hooper asks Harvey about her inspirations and how she was able to so vividly capture this sense of Earth from afar. Plus a meditation on what it means, emotionally, to look at our planet from space and reckon with how we are changing it. To read about subjects like this and much more, visit newscientist.com. Hosted on Acast. See acast.com/privacy for more information. Learn more about your ad choices. Visit megaphone.fm/adchoices

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Weekly: Spinal cord stimulation for Parkinson’s Disease; half-synthetic yeast; harvesting the ocean’s heat for energy

Season 1 · Episode 223

Friday, November 10, 2023 • Duration 29:03

#223 Spinal cord stimulation has, for the first time, been used to improve the mobility of someone with Parkinson’s Disease. Marc, who has battled the condition for 30 years, once fell five to six times daily, but now is able to walk kilometres per day thanks to an array of electrodes that stimulate the movement-related neurons in his spine. Though it was successful for Marc, the treatment is also highly customised and more research is needed before it might benefit people more broadly. In the world of synthetic biology, an international team has crafted a yeast cell with half its DNA manufactured in a lab, marking a significant step in our ability to rewrite and alter complex genomes. While yeast is already used to create useful substances such as beer and insulin, synthetic yeasts could be engineered to create an even wider variety of molecules more easily. Why yeast might be just the beginning for synthetic organisms. Can the secret to affordable, clean energy have been in the ocean all this time? Engineers are bringing a 140-year-old idea back to life, with the aim of harnessing the massive temperature difference between warm surface water and cold, deep sea water. A process known as Ocean Thermal Energy Conversion (OTEC) was originally proposed in the 19th century and is now being tested in some island nations. How this sustainable method works and the obstacles to its widespread adoption. New evolutionary research shows that crabs evolved to leave the ocean up to 17 different times in the 230 million years since they arose. What these crustaceans’ remarkable evolutionary flexibility might reveal about adaptability across the animal kingdom. Plus: Using tiny microphones to record happy rat squeaks, a breakthrough in underwater radio communication and a smashing fact about left-handed badminton players. Hosts Christie Taylor and Chelsea Whyte discuss all of this with guests Michael Le Page, James Dinneen and Alexandra Thompson. To read more about these stories, visit newscientist.com. Hosted on Acast. See acast.com/privacy for more information. Learn more about your ad choices. Visit megaphone.fm/adchoices

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Dead Planets Society: #9 Unify the Asteroid Belt

Season 1 · Episode 9

Tuesday, November 7, 2023 • Duration 17:58

Asteroids are cool, but they’re all spread out across the solar system. Wouldn’t it be neater if we could smush them all together to make one MEGA asteroid? Maybe even an asteroid… planet. From an asteroid sausage machine to a Jell-O infused asteroid donut, Leah and Chelsea discover just how difficult and disastrous it would be to merge the asteroid belt – with one surprising silver lining. Joining them in their quest are planetary scientists Andy Rivkin of John Hopkins University, and Kathryn Volk of the University of Arizona. Dead Planets Society is a podcast that takes outlandish ideas about how to tinker with the cosmos – from punching a hole in a planet to unifying the asteroid belt to destroying the sun – and subjects them to the laws of physics to see how they fare. Your hosts are Leah Crane and Chelsea Whyte. If you have a cosmic object you’d like to figure out how to destroy, email the team at deadplanets@newscientist.com. It may just feature in a later episode… And if you just want to chat about this episode or wrecking the cosmos more generally, tweet @chelswhyte and @downhereonearth. Hosted on Acast. See acast.com/privacy for more information. Learn more about your ad choices. Visit megaphone.fm/adchoices

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Weekly: Do you really need 8 hours of sleep?; The ancient planet buried inside Earth; Starfish are just heads

Season 1 · Episode 222

Friday, November 3, 2023 • Duration 29:08

#222 At this point, most people have heard the accepted wisdom that you need 8 hours sleep every night, especially for a healthy brain. But what if we’ve got it all wrong? If you lie awake at night worrying about getting enough sleep, you may be in luck. A reminder that correlation is not causation, and some surprising new research into how our brains respond to lower amounts of sleep. In space news, NASA’s Lucy spacecraft has just completed a fly-by of a ‘nearby’ asteroid, in preparation for a much bigger excursion out into the solar system. Lucy’s next mission takes it to Jupiter, where it’ll be exploring the asteroids that follow in the gas giant’s orbit, and which may be fragments from early planetary formation. Also, unusual dense spots buried deep within Earth’s mantle may actually be remains of an ancient planet that collided with ours. What buried bits of ‘Theia’ might tell us about Earth’s cosmological history and the creation of our moon. The UK’s first summit to discuss the safety and security of AI and its role in society has now drawn to a close. Prime Minister Rishi Sunak brought together more than 100 delegates from 28 countries, including tech CEOs such as Elon Musk. Amid frustrations over transparency, and a lacklustre policy result, what did the summit actually achieve? Can you find the head on a starfish? Researchers investigating the animal’s genes are finding that starfish are actually just heads, and perhaps nothing else, crawling around on their lips. What this finding tells us about the way ecology and natural selection shape animal evolution. Plus: Why some flatworms are great at sex, while others can regrow their heads – and why they can’t do both at the same time. How a desert plant is adapting to low moisture environments with salty sweat. And why chimps seek out high ground to spy on their rivals. Hosts Timothy Revell and Christie Taylor discuss all of this with guests Clare Wilson, Leah Crane, Matt Sparkes and Claire Ainsworth. To read more about these stories, visit newscientist.com. Events and Links: newscientist.com/tours Hosted on Acast. See acast.com/privacy for more information. Learn more about your ad choices. Visit megaphone.fm/adchoices

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CultureLab: Suzie Edge’s curious (and sometimes gruesome) history of famous body parts

Tuesday, October 31, 2023 • Duration 32:18

Did you know we have King Louis XIV to thank for fistula surgeries? After surgeons worked hard to find a cure for his rear-end ailment, the operation became the height of fashion, with people queuing up to go under the knife so they could be just like their king. That’s just one of the incredible stories from Suzie Edge’s new book Vital Organs: A History of the World’s Most Famous Body Parts. Suzie Edge is a medical historian and frequently takes to TikTok to surprise (and sometimes shock) her followers with the true health stories of famous people from the past. In this episode, Suzie explores some of the most fascinating tales from her book, including the tale of Alexis St. Martin, who became a medical curiosity after an accident left his stomach partially open to the world. She explains why she loves talking about the bodies of famous people from the past – how it makes them feel less like myths or legends, and more like real people. And she touches on our obsession with stigmatising people based on their physical appearance – how movie villains often have facial disfigurements, or how historians often blamed Kaiser Wilhelm’s warlike ways on his disabled left arm. To read about subjects like this and much more, visit newscientist.com. Hosted on Acast. See acast.com/privacy for more information. Learn more about your ad choices. Visit megaphone.fm/adchoices

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Weekly: Security risks of ChatGPT; do other mammals go through the menopause?; record breaking quantum computer

Season 1 · Episode 221

Friday, October 27, 2023 • Duration 31:14

#221 Independent researchers have found new ways that OpenAI’s ChatGPT tool can assist bad actors, from providing the code needed to hack computer databases to teaching people how to make homemade explosives. While the company continually updates security safeguards, it turns out some languages can be used to bypass these guardrails. It has long been thought that only humans and some toothed whales go through the menopause. But are there other mammals out there who experience it too? And if so, is it a rarity, or much more common than we realised? The answer may depend on how you define “menopause.” A US start-up has broken a record in quantum computing, fitting the largest ever number of qubits – or quantum bits – into its new machine, finally exceeding the 1000-qubit milestone and more than doubling the previous record. Qubits are what allow quantum computers to do their calculations, and are essential in increasing reliability and stability. Still, more qubits aren’t the only step in the quest for more practical quantum computers. Measuring self-awareness in animals usually involves a well-known mirror test, where an animal is given a mark before being placed in front of a mirror. If they touch the mark after seeing it on their reflection, they pass the test. But few animals have passed, and it isn’t without controversy. Now, researchers using a new kind of mirror test to investigate self-awareness in chickens – who fail the classic mirror test – think they have found new evidence that the birds recognise their reflections as “self.” This might reveal self-awareness in a greater variety of animals. Plus: Perfecting vegan cheeses with the help of fermentation, smart glasses that could mimic echolocation for people who are blind and measuring the weight of the human immune system. Hosts Timothy Revell and Christie Taylor discuss all of this with guests Jeremy Hsu, Michael Le Page, Chelsea Whyte and Alex Wilkins. To read more about these stories, visit newscientist.com. Events and Links: www.newscientist.com/halloween Hosted on Acast. See acast.com/privacy for more information. Learn more about your ad choices. Visit megaphone.fm/adchoices

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Dead Planets Society: #8 The Worst of All Worlds

Season 1 · Episode 8

Monday, October 23, 2023 • Duration 27:10

Whether it’s searing heat, sapphire winds striking the sky like rain, or an atmosphere that makes your eyes pop out of your head, some planets are just horrible for life. But even though some pretty horrific planets already exist, the team is not satisfied – they want to bring all of these calamitous qualities together to design the worst of all worlds. In a special bonus edition of Dead Planets Society, recorded on stage in front of an audience at New Scientist Live, Chelsea Whyte and Leah Crane rope two guests in on their mission of destruction. Joining our hosts in their quest to make the most inhospitable planet are astrobiologist and author Lewis Dartnell at the University of Westminster and Vincent Van Eylen, professor and exoplanet researcher at University College London. Dead Planets Society is a podcast that takes outlandish ideas about how to tinker with the cosmos – from punching a hole in a planet to unifying the asteroid belt. The hosts are Leah Crane and Chelsea Whyte. If you have a cosmic object you’d like us to figure out how to destroy, email the team at deadplanets@newscientist.com. Or if you just want to chat about this episode or wrecking the cosmos more generally, tweet @chelswhyte and @downhereonearth. Hosted on Acast. See acast.com/privacy for more information. Learn more about your ad choices. Visit megaphone.fm/adchoices

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The World, the Universe and Us – Details, episodes & analysis

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The World, the Universe and Us – Details, episodes & analysis

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