Mapping the migration of the Vikings, and the world’s smallest ultrasound device.In this episode:00:45 Following the Viking footprint across EuropeTo better understand who the Vikings were, and where they went, researchers have mapped genomes from hundreds of archaeological artifacts. Research Article: Margaryan et al.08:00 CoronapodPhase III trials of a leading coronavirus vaccine were abruptly paused last week – we discuss how news of the event leaked out, and the arguments for transparency in clinical trials. News: A leading coronavirus vaccine trial is on hold: scientists react; News: Scientists relieved as coronavirus vaccine trial restarts — but question lack of transparency; If you are involved in a clinical trial for a coronavirus vaccine or treatment, please fill in our survey.21:05 Research HighlightsA burnt grain silo gives insight into ancient tax collection, and how hummingbirds survive the cold Andean nights. Research Highlight: Ancient tax collectors amassed a fortune — until it went up in smoke; Research Highlight: Why some of the world’s zippiest birds go stiff and cold every night23:40 Ultra-tiny ultrasoundScientists have developed an ultrasound detector which is smaller than the wavelength of sound it detects, providing highly detailed imaging at a cellular level; Research Article: ; Research Article: Shnaiderman et al.29:53 Briefing ChatWe discuss some of the latest stories highlighted in the Nature Briefing. This week we talk about why California has an orange hue, and the strangeness at the edge of the Solar System. Forbes: The Science Behind Mysterious Orange Skies In California; BBC Future: The weird space that lies outside our Solar SystemSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.  See acast.com/privacy for privacy and opt-out information.

Nature Podcast

Genes chart Vikings' spread across Europe

Keeping electronics from overheating, and how to include minority populations in genetic analyses.In this episode:00:46 Cool computersKeeping components cool is a major hurdle when it comes to increasing electronic power. This week, we find out about a new way to integrate tiny microfluidic channels directly into circuits, to help keep them cool. Research Article: van Erp et al.06:57 CoronapodBy comparing coronavirus genomes taken from people around the world, researchers are getting an idea of how SARS-CoV-2 is changing as it spreads. We discuss a particular genetic mutation that rapidly became dominant early in the pandemic, and the effect it may have had on the outbreak. News: The coronavirus is mutating — does it matter?21:41 Research HighlightsHow rock avalanches can cause destructive air blasts, and melting glaciers cause lakes to grow. Research Highlight: The violent blasts that can add to an avalanche’s devastation; Research Article: Shugar et al.23:59 The people left out of genetic studiesMinority populations are often underrepresented in genetic study recruitment. However, even when data about them is collected it may go unused. We find out why, and what can be done about it. Comment: Don’t ignore genetic data from minority populations30:51 Briefing ChatWe discuss some of the latest stories highlighted in the Nature Briefing. This week we discuss how bacterially-infected mosquitoes could curb dengue fever, and some surprisingly large black holes. Nature News: The mosquito strategy that could eliminate dengue; Nature News: ‘It’s mindboggling!’: astronomers detect most powerful black-hole collision yetSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.  See acast.com/privacy for privacy and opt-out information.

A new way to cool computer chips - from within

Engineering yeast to produce medicines, and the mechanism of anaesthetic action.In this episode:00:44 Making medicine with yeastThe tropane alkaloids are an important class of medicine, but they are produced agriculturally leaving them vulnerable to extreme weather and world events. Now, researchers have engineered yeast to produce these important molecules. Research Article: Srinivasan and Smolke06:36 CoronapodWe discuss the complex story of immunity to COVID-19, and how this may affect vaccine development. News Feature: What the immune response to the coronavirus says about the prospects for a vaccine16:33 Research HighlightsThe neurological reason for overindulgence, and the bacteria that harness copper electrodes. Research Highlight: The brain circuit that encourages eating for pleasure; Research Highlight: Microbes with mettle build their own electrical ‘wires’19:07 The molecular mechanisms of general anaestheticsDespite over a century of use, there’s a lot we don’t know about how anaesthetics function. This week, researchers have identified how some of them they bind to a specific neuronal receptor. Research Article: Kim et al.26:34 Briefing ChatWhilst the Nature Briefing is on its summer holidays, we take a look at some other science from around the web. This time we discuss Elon Musk’s latest showcase of a brain-chip, and the physics behind how boats can float upside down on levitating liquid. New Scientist: Elon Musk demonstrated a Neuralink brain implant in a live pig; Business Insider: Elon Musk's AI brain chip company Neuralink is doing its first live tech demo on Friday. Here's what we know so far about the wild science behind it.; Research Article: Apffel et al.; Video: The weird physics of upside down buoyancy

Revealed: A clearer view of how general anaesthetics actually work

Protecting delicate quantum bits, and a competition to replicate findings from ancient computer code.In this episode:01:04 Quantum computers vs ionizing radiationThe quantum bits, or ‘qubits’, central to the operation of quantum computers are notoriously sensitive. Now, researchers have assessed the damaging effects that ionizing radiation can have on these qubits and what can be done about it. Research Article: Vepsäläinen et al.08:15 CoronapodWe discuss the US Food and Drug Administration’s decision to authorize convalescent plasma for emergency use in COVID-19 patients. As accusations of political interference fly, what might this mean for the future of the US coronavirus response?20:39 Research HighlightsFinding new populations of a long-lost elephant shrew, and the hunting method of ancient ichthyosaurs. Research Highlight: An elephant-nosed creature ‘lost to science’ was living just next door; Research Highlight: An extinct reptile’s last meal shows it was a grip-and-tear killer22:34 The reproducibility of computer codeMany scientists have published papers based on code. Recently though, a gauntlet was thrown down for researchers to try to replicate their code, 10 years or more after they wrote it. Tech Feature: Challenge to scientists: does your ten-year-old code still run?28:06 Briefing ChatWe take a look at some highlights from the Nature Briefing. This time we discuss a cancer diagnosis in a dinosaur, and how to brew yourself a career outside of academia. Science: Doctors diagnose advanced cancer—in a dinosaur; Nature Careers Feature: The brews and bakes that forged career paths outside academiaSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.  See acast.com/privacy for privacy and opt-out information.

The challenge of reproducing results from ten-year-old code

A new way to produce aerogels opens up their use, and understanding how sulfur can change state between two liquids.In this episode:01:05 Printing aerogelsAerogels are materials with impressive insulating properties, but they’re difficult to handle, due to their innate fragility. Now, researchers have shown a new way to 3D print the most common form of aerogel, opening up a range of potential new applications. Research Article: Zhao et al.07:00 CoronapodTo provide targeted public health interventions during the pandemic, it’s vital that data are collected and shared effectively. We discuss the countries doing this well, and find out how fragmented systems are preventing epidemiologists from giving up-to-date information on outbreaks.21:11 Research HighlightsFats in the blood as a possible marker of autism, and the selfish component to solar panel adoption. Research Highlight: Fats in the blood linked to autism; Research Highlight: Self-interest powers decision to go solar23:24 Liquid-liquid transitionsIt’s been thought that some liquids may be able to exist in two distinct states, but evidence has been scarce. Now, researchers show that sulfur can exist in two liquid states, and have discovered some insights into how this might occur. Research Article: Henry et al.; Video: 24 hours in a synchrotron30:09 Briefing ChatWe take a look at some highlights from the Nature Briefing. This time we discuss the English language’s dominance in science, and how to make squid transparent. Symmetry: Physics in a second language; OneZero: The First Gene-Edited Squid in History Is a Biological BreakthroughSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.  See acast.com/privacy for privacy and opt-out information.

3D-printing some of the world's lightest materials

Triggering swarming behaviour in locusts, and new insights into how humans synchronize.In this episode:01:56 Understanding swarming behaviourSwarms of migratory locusts regularly devastate crops across the world, but why these swarms form has been a mystery. Now, a team of researchers have identified a compound that causes solitary locusts to come together in their billions - a finding that could have practical applications for preventing this behaviour. Research article: Guo et al.; News & Views: Catching plague locusts with their own scent08:48 CoronapodWe discuss the role that monoclonal antibodies may have as therapeutics to treat COVID-19. Although promising, there are numerous hurdles to overcome before these drugs can be used. News: Antibody therapies could be a bridge to a coronavirus vaccine — but will the world benefit?15:30 Research HighlightsA satellite’s fecal find reveals that Antarctica’s emperor penguin population is much larger than previously thought, and changing how genes are named to avoid Excel’s autocorrect. Research Highlight: Satellites find penguins by following the poo; Research article: Bruford et al.17:49 An out-of-sync arts projectA collaborative art-science project featuring a network of connected violinists has given new insights into how humans synchronize. Research article: Shahal et al.23:51 Briefing ChatWe take a look at some highlights from the Nature Briefing. This time we find out about the odd immune system of the anglerfish, and the beetle that can pass through a frog’s digestive system without coming to harm. Wired: The Anglerfish Deleted Its Immune System to Fuse With Its Mate; Research paper: SugiuraSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.  See acast.com/privacy for privacy and opt-out information.

The chemical that turns locusts from Jekyll into Hyde

In 2015, after a nine-and-a-half-year journey, NASA’s New Horizons spacecraft raced past Pluto, beaming images of the dwarf planet back to Earth.Five years after the mission, researchers are poring over images of Pluto’s far-side, which was shrouded in shadow during New Horizon’s flypast. They hope that these images will help give a better understanding of how Pluto was born and even whether a hidden ocean resides beneath the world’s icy crust.This is an audio version of our feature: Pluto’s dark side spills its secrets — including hints of a hidden ocean  See acast.com/privacy for privacy and opt-out information.

Audio long-read: Pluto’s dark side is overflowing with secrets

Skin's unusual response to stretching is finally explained, and the latest in a huge effort to map DNA.In this episode:01:06 Stretching skinFor decades it’s been known that stretching skin causes more skin to grow, but the reasons why have been a mystery. Now, researchers have uncovered a mechanism to explain the phenomenon. Research Article: Aragona et al.; News and Views: Stretch exercises for stem cells expand the skin07:49 CoronapodWe discuss how the coronavirus pandemic has affected scientific meetings and how the learned societies that organise them are adapting. How scientific conferences will survive the coronavirus shock; How scientific societies are weathering the pandemic’s financial storm; A year without conferences? How the coronavirus pandemic could change research18:18 Research HighlightsA genetic trait for pain-resistance, and the accessibility-aware ancient Greeks. Research Highlight: A gene helps women in labour to skip the painkillers; Research Highlight: This temple was equipped with accessibility ramps more than 2,000 years ago20:42 ENCODE updatesThe ENCODE project aims to identify all the regions in the human genome involved in gene regulation. This week, data from its third iteration has been published and we examine the highlights. Research Article: Snyder; News and Views: Expanded ENCODE delivers invaluable genomic encyclopaedia28:50 Briefing ChatWe take a look at some highlights from the Nature Briefing. This time we look at how smallpox may be much older than previously thought, and how the Earth’s atmosphere rings like a bell. Nature News: Smallpox and other viruses plagued humans much earlier than suspected; Physics World: 

Why skin grows bigger as you stretch it

New evidence may push back the date on human arrival to the Americas, and an examination of science’s flaws.In this episode:00:59 Ancient AmericansTwo papers suggest that humans were present in the Americas thousands of years before many people have thought. We examine the evidence. Research Article: Ardelean et al.; Research Article: Becerra-Valdivia and Higham; News and Views: Evidence grows that peopling of the Americas began more than 20,000 years ago10:44 CoronapodWe discuss the latest results from vaccine trials around the world, and controversy in the US as COVID-19 data collection moves out of the CDC. News: Coronavirus vaccines leap through safety trials — but which will work is anybody’s guess24:38 Research HighlightsHow being green makes things easy for some frogs, and how waves will be affected by climate change. Research Highlight: How frogs became green — again, and again, and again; Research Highlight: Extreme Arctic waves set to hit new heights27:11 How can science improve?A new book highlights some of the flaws of how science is done. We caught up with the author to find out his thoughts on how science can be cleaned up. Books and Arts: Fraud, bias, negligence and hype in the lab — a rogues’ gallery35:54 Briefing ChatWe take a look at some highlights from the Nature Briefing. This time we discuss a puzzling new insight into the expansion of the Universe, and an update to Plan S that will allow open-access research to be published in any journal. Nature News: Mystery over Universe’s expansion deepens with fresh data; Nature News: Open-access Plan S to allow publishing in any journalSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.  See acast.com/privacy for privacy and opt-out information.

When did people arrive in the Americas? New evidence stokes debate

Probing the superconducting properties of graphene and bacteria that can use manganese to grow.01:15 Magic angle grapheneIf you sandwich two sheets of graphene together and twist one in just the right way, it can gain some superconducting properties. Now, physicists have added another material to this sandwich which stabilises that superconductivity, a result that may complicate physicists’ understanding of magic angles. Research Article: Arora et al.08:22 CoronapodWith evidence mounting that SARS-CoV2 can spread in tiny aersolised droplets, researchers have called on the WHO to change their guidance for disease prevention. News: Mounting evidence suggests coronavirus is airborne — but health advice has not caught up; Research article: Morwaska et al.; WHO: Transmission of SARS-CoV-2: implications for infection prevention precautions19:27 Research HighlightsRepairing human lungs by hooking them up to pigs, and a new form of carbon. Research Highlight: How to use a live pig to revitalize a human lung; Research Highlight: This material is almost as hard as diamond — but as light as graphite21:46 Manganese munchersFor decades it’s been thought that microbes that use manganese as an energy source must exist. Now, for the first time, researchers have found evidence that they do. Research Article: Yu and Leadbetter29:12 Briefing ChatWe take a look at some highlights from the Nature Briefing. This time we discuss DNA evidence of contact between ancient Native Americans and Polynesians, reintroduction of bison to the UK, and the first extinction of a modern marine fish. Nature News: Ancient voyage carried Native Americans’ DNA to remote Pacific islands; The Guardian: Wild bison to return to UK for first time in 6,000 years; Scientific American: 

Graphene’s magic angle reveals a new twist

In this episode:01:47 Disaster in San QuentinSan Quentin prison is facing a massive outbreak, we dig into how they got there. The crisis has arisen despite warnings from experts, and offers of free tests, which were declined. We ask why? And what can be done now?News: California's San Quentin prison declined free coronavirus tests and urgent advice — now it has a massive outbreak29:51 One good thingFor the last episode of Coronapod, our hosts pick out ways that the pandemic has changed them for the better, including professional flexibility, a renewed focus on the power of reporting and time with family36:07 Lockdown and children's healthReporter Stewart asks if lockdowns could have any lasting impact on her young children - what evidence is there on the effect of isolation on young minds?Survey: Co-Space Study: Supporting Parents, Adolescents and Children during Epidemics  See acast.com/privacy for privacy and opt-out information.

Massive coronavirus outbreak strikes iconic Californian prison after it rejected expert aid

On this week’s podcast, an ambitious Mars mission from a young space agency, and how crumbling up rocks could help fight climate change.In this episode:00:46 Mars hopesIn a few weeks the UAE’s first mission to Mars is due to launch. We speak to the mission leads to learn about the aims of the project, and how they developed the mission in under six years. News Feature: How a small Arab nation built a Mars mission from scratch in six years; News Feature: Countdown to Mars: three daring missions take aim at the red planet09:53 Research HighlightsPluto appears to be losing its atmosphere, and solving the mystery of a pitch-black prehistoric mine. Research Highlight: Goodbye, Pluto’s atmosphere; Research Highlight: Why ancient people pushed deep into Mexico’s pitch-black caverns12:12 Climate rocksResearchers have assessed whether Enhanced Weathering – a technique to pull carbon dioxide out of the air – has the potential to help battle climate change. Research Article: Beerling et al.18:41 Briefing ChatWe take a look at some highlights from the Nature Briefing. This time we talk about an outbreak of flesh-eating bacteria in Australia, and how flatworms can regrow their nervous systems. The Atlantic: Australia Has a Flesh-Eating-Bacteria Problem; The New York Times: A Worm’s Hidden Map for Growing New EyesSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.  See acast.com/privacy for privacy and opt-out information.

The six-year-old space agency with hopes for Mars

Next week, we’ll be wrapping up Coronapod in its current form. Please fill out our short survey to let us know your thoughts on the show.In this episode:02:15 Simulating pandemicsResearchers have run numerous military-style simulations to predict the consequences of fictitious viral outbreaks. We discuss how these simulations work, what recommendations come out of them and if any of these warnings have been heeded.24:08 One good thingOur hosts pick out things that have made them smile in the last week, including audience feedback, the official end of the Ebola outbreak in the northeastern Democratic Republic of the Congo, and an enormous t-shirt collection.News: World’s second-deadliest Ebola outbreak ends in Democratic Republic of the Congo28:50 The latest coronavirus research papersBenjamin Thompson takes a look through some of the key coronavirus papers of the last few weeks.News: Coronavirus research updatesCell: A SARS-CoV-2 Infection Model in Mice Demonstrates Protection by Neutralizing AntibodiesCell: Generation of a Broadly Useful Model for COVID-19 Pathogenesis, Vaccination, and TreatmentClincal Infectious Diseases: The natural history and transmission potential of asymptomatic SARS-CoV-2 infectionNature: Suppression of a SARS-CoV-2 outbreak in the Italian municipality of Vo’medRxiv: Test sensitivity is secondary to frequency and turnaround time for COVID-19 surveillanceSubscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.  See acast.com/privacy for privacy and opt-out information.

Coronapod: Lessons from pandemic ‘war-game’ simulations

On this week’s podcast, how the molecular structure of tooth enamel may impact decay, and a mysterious planetary core from a half-formed gas giant.In this episode:00:46 Unravelling tooth enamelResearchers have been looking into the structure and composition of enamel in an effort to better understand tooth decay. Research Article: DeRocher et al.07:02 Research HighlightsAn adhesive patch to help heal heart-attacks, and a new technique to inspect the structure of 2D ‘wonder materials’. Research Highlight: A healing patch holds tight to a beating heart; Research Highlight: A snapshot shows off super-material only two atoms thick09:21 Unusual planetIn the region close to stars known as the ‘hot Neptune desert’ planets of Neptune’s size are rarely found, but this week scientists have uncovered one and are trying to untangle its mysteries. Research Article: Armstrong et al.14:52 Briefing ChatWe take a look at some highlights from the Nature Briefing. This time we talk about the pitfalls of using CRISPR in human embryos, and renaming of moon craters inadvertently named after Nazi scientists. Nature News: CRISPR gene editing in human embryos wreaks chromosomal mayhem; Prospect Magazine: Astronomers unknowingly dedicated moon craters to Nazis. Will the next historical reckoning be at cosmic level?Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.  See acast.com/privacy for privacy and opt-out information.

What the atomic structure of enamel tells us about tooth decay

In a few weeks, we’ll be wrapping up Coronapod in its current form. Please fill out our short survey to let us know your thoughts on the show.In this episode:03:13 What have we learnt?We take a look back over the past six months of the pandemic, and discuss how far the world has come. It’s been a period of turmoil and science has faced an unprecedented challenge. What lessons can be learned from the epidemic so far to continue the fight in the months to come?Financial Times: Coronavirus tracked: the latest figures as countries start to reopenWellcome Open Research: What settings have been linked to SARS-CoV-2 transmission clusters?12:55 Unanswered questionsAfter months of intensive research, much is known about the new coronavirus – but many important questions remain unanswered. We look at the knowledge gaps researchers are trying to fill.Nature Medicine: Real-time tracking of self-reported symptoms to predict potential COVID-1920:36 How has lockdown affected fieldwork?The inability to travel during lockdown has seriously hampered many researchers’ ability to gather fieldwork data. We hear from three whose work has been affected, and what this means for their projects.Subscribe to Nature Briefing, an unmissable daily round-up of science news, opinion and analysis free in your inbox every weekday.  See acast.com/privacy for privacy and opt-out information.

Coronapod: The state of the pandemic, six months in

The Nature Podcast brings you the best stories from the world of science each week. We cover everything from astronomy to zoology, highlighting the most exciting research from each issue of Nature journal. We meet the scientists behind the results and providing in-depth analysis from Nature's journalists and editors.

hubhopper

Nature Podcast

hubhopper