New Scientist Podcasts

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  • Podcasts for the insatiably curious by the world’s most popular weekly science magazine. Everything from the latest science and technology news to the big-picture questions about life, the universe and what it means to be human. For more visit newscientist.com/podcasts
    © 2024 New Scientist Podcasts
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Episodios
  • Weekly: America is turning its back on science and the cosmos; photosynthesis limits; mysterious memory illusion

    Weekly: America is turning its back on science and the cosmos; photosynthesis limits; mysterious memory illusion
    Mar 14 2025
    Episode 293 The future of NASA and of US science is under threat, following cuts made by the Trump administration. Johns Hopkins University lost $800 million in grants this week which will impact the health of people all over the world. At the same time, there’s chaos at NASA where the budget is set to be cut in half, with multiple people losing their jobs overnight. What missions will we have to sacrifice - and will NASA survive? As we pump ever increasing amounts of carbon dioxide into the atmosphere, some people argue this is actually a benefit to the world’s plant life. As carbon dioxide rises, photosynthesis can increase - but only up to a point. New research shows there’s a limit to this effect and many, many consequences. One study on trees suggests rising CO2 levels could impact the carbon storage capacity, and the lifespan, of the world’s forests. Our understanding of memory has been flipped on its head. Researchers have been looking into a memory illusion that warps our perception of time. In a clever experiment, they’ve shown that experiencing something multiple times not only makes our memory of it stronger, but also makes us think it’s an older memory too. Find out what’s happening - and how there is no single thing as “memory”. Chapters: (00:21) The future of NASA (6:52) Photosynthesis collapse (19:59) The mystery of memory Hosted by Rowan Hooper and Penny Sarchet, with guests Jacob Aron, Madeleine Cuff, Sophie Berdugo, Rob MacKenzie, Gustaf Degan, Ian Billick and Alex Easton. 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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    28 m
  • Weekly: Chimps, bonobos and humans have more in common than you might think

    Weekly: Chimps, bonobos and humans have more in common than you might think
    Mar 7 2025
    Episode 292 Chimps are often seen as our hyper-aggressive ancestral cousins, while bonobos are famously more peaceful and caring. But studies of their sexual habits and practices show they are much more alike than we realised. Both apes appear to use sex and genital contact not just to reproduce, but also to smooth tensions in the group, deal with stressful situations and handle conflict at feeding time. Sophie Bergudo has recently finished a PhD on chimp behaviour and shares insights from her time spent with wild chimps in Bossou in Guinea, West Africa. Beyond sex, she also explores a unique display of tool use among these chimps, who use stone tools to crack open nuts. Find out why this UN protected cultural behaviour is on the brink of extinction. Ancient humans were using tools made from animal bones over 1 million years earlier than we thought. We know our ancestors used stone tools at least 2.6 million years ago, but have only had evidence of bone use from about 400,000 years ago. But now archaeologists have unearthed at least 27 bone tools from the Olduvai Gorge in Tanzania, that are at least 1.5 million years old - shifting our understanding of the evolution of these technologies. The US Defense Advanced Research Projects Agency is exploring ways to grow massive biological structures in space, to be used as telescope antennas, huge nets to catch debris or space elevators linking Earth’s surface to orbit. The idea is quite ‘out there’, even for DARPA. The question is, is it even possible? Chapters: (00:58) Sexuality of chimps and bonobos (17:31) Ancient animal bone tools (22:41) Creating biological space structures Hosted by Rowan Hooper and Penny Sarchet, with guests Sophie Berdugo, Jake Brooker and Katarina Almeida-Warren. To read more about these stories, visit https://www.newscientist.com/ Listen to our previous episode on why chimps are stuck in the stone age: https://www.newscientist.com/podcasts/weekly-why-chimps-are-still-in-the-stone-age-and-humans-are-in-the-space-age/ Read Sophie’s article on ancient tools here: https://www.newscientist.com/article/mg26435164-200-before-the-stone-age-were-the-first-tools-made-from-plants-not-rocks/ Read Rowan’s column on building a lunar space elevator here: https://www.newscientist.com/article/mg26435200-200-how-a-space-elevator-could-make-trips-to-the-moon-affordable-for-all/ Image credits: CSIC Credit Jake Brooker/ Chimfunshi Wildlife Orphanage Trust Zanna Clay/ Lola ya Bonobo Learn more about your ad choices. Visit megaphone.fm/adchoices
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    28 m
  • Weekly: How to finally get a good night’s sleep - with science

    Weekly: How to finally get a good night’s sleep - with science
    Feb 28 2025
    Episode 291 Who got better sleep - hunter-gatherers or modern-day humans? We’re constantly being told we’re in the midst of an epidemic of poor sleep, but were our ancestors spending any longer in bed than we are? The answer may well surprise you. We weigh up the pros and cons of sleeping in industrialised societies and explore the real reasons why we’re always complaining about being tired. We often hear you can’t make up for a bad night’s sleep - once you’ve missed those precious hours in bed, no amount of lie-ins will fix the damage. But is that true? We look into the surprising impacts on your brain from racking up just a few hours of sleep debt, plus tips on how to recover from it. And if you’re in sleep debt and don’t know it, we share the signs to look out for. Our microbiome is linked to various aspects of our health - and now it seems it shares a two-way connection with sleep. Irregular sleep patterns have been shown to boost the number of “bad” microbes living in our guts, so we unpack what’s going on. We also learn what supplements and foods you can use to improve your sleep, if cheese gives you nightmares - and whether a poop transplant can help you rest easier. Many people are using sleep trackers these days to improve their sleep habits, but how useful are they? Some experts say sleep trackers are doing more harm than good, making you so stressed about your sleep that you struggle to get any. The team shares their experiences with sleep wearables and other tech - everything from temperature controlled mattresses to EEG brain scanners. Naps can be good for you - if you do them the right way. Nap too long and you’ll end up feeling worse. So what’s the perfect amount of time to snooze in the afternoon? We dig into the science of naps, why the military recommends “tactical naps” and whether offices should be bringing in “nap pods” for staff. We also take a look at the strange practices of polyphasic sleeping, where you sleep in chunks throughout the day. Sleep special: https://www.newscientist.com/subject/sleep/ Chapters: (00:52) Are we really in a poor sleep epidemic? (6:22) Getting into sleep debt (16:47) How sleep affects your microbiome (25:36) Sleep trackers and other tech (29:28) Perfect the art of the nap Offering their sleep tips in this special episode of the podcast are Rowan Hooper, Madeleine Cuff, Catherine de Lange and Alison George. 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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    37 m

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Interesting stories, charming hosts with good chemistry!

Interesting topics, guests who are knowledgable and speak in plain language. The hosts have a sense of humor and nice chemistry with each other.

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