BBC World Service

Unexpected Elements

The news you know, the science you don’t. Unexpected Elements looks beyond everyday narratives to discover a goldmine of scientific stories and connections from around the globe. From Afronauts, to why we argue, to a deep dive on animal lifespans: see the world in a new way.

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BBC World Service

Categoría

Science

Web del podcast

www.bbc.co.uk

Último episodio

16 de oct. de 2026

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Episodios

Bambi got Covid 14.11.2021

Up to 8 percent of deer sampled in studies in the US were found to be infected with the SARS-Cov-2 Virus. Suresh Kuchipudi from the Department of Veterinary and Biomedical Sciences at Penn State University in the US says what they are seeing is a mixture of human to deer and deer to deer transmission of the virus. There is concern that its presence in animal reservoirs could lead to a new form of...

Jet fuel from thin air 07.11.2021

Scientists in Switzerland have developed a system which uses solar energy to extract gases such as hydrogen and carbon dioxide from the air and turns them into fuels for transport. So far they have only made small quantities in experimental reactors, however they say with the right investment their alternatives to fossil fuels could be scaled up to provide a climate friendly way to power transport...

Can we still avoid climate catastrophe? 31.10.2021

Just a few days before COP26 opens in Glasgow, the World Meteorological Organisation reported record greenhouse gas levels, despite a fall in CO2 due to pandemic restrictions. The UN Environment Programme’s Emissions Gap Report also revealed that current country pledges will only take 7.5% off predicted greenhouse gas emissions by 2030, well below the 55% needed to limit global warming to 1.5C. Wo...

Red blood cells’ surprising immune function 24.10.2021

We’ve talked a huge amount the past 18 months, for obvious reasons, about the way that white blood cells protect us from infection. But red blood cells – it’s probably among the earliest things I learned in human biology that they’re simple bags for carrying oxygen around the body. But over recent years, immunologist Nilam Mangalmurti, University of Pennsylvania, has been finding several clues to...

Wetlands under attack 15.10.2021

Since its introduction four decades ago, Spartina alterniflora, a salt-water cordgrass from the USA, has been spreading along China’s coasts. Today, it covers nearly half of the country’s salt marshes. As the UN Biodiversity Conference COP 15 kicks off in China, we look at how this invasive plant species threatens native species in protected coastal wetlands. Featuring Yuan Lin, East China Normal...

Youngest rock samples from the moon 10.10.2021

n December 2020, China's Chang'e-5 mission returned to earth carrying rock samples collected from the moon – the first lunar samples to be collected since the American Apollo and Luna missions to the moon in the 1970s. Laboratory analysis has revealed that these are the youngest samples of rocks to be collected from the moon. Lunar geologist Katherine Joy explains what this tells us about the moon...

Drug resistant malaria found in East Africa 03.10.2021

Since their discovery in the 1970s, artemisinin-based drugs have become the mainstay of treatment for malaria caused by the Plasmodium falciparum parasite. Researchers have identified artemisinin-resistant malaria parasites in Southeast Asia since the early 2000s, but now, there is evidence of resistance in Rwanda and Uganda. Dr Betty Balikagala of Juntendo University tells us how this resistance...

New evidence for SARS-CoV-2’s origin in bats 26.09.2021

Researchers studying bats in Northern Laos have found evidence that brings us closer than ever to understanding the origin of Covid-19. Since the beginning of the coronavirus pandemic scientists have tried to pin-point the exact origin of SARS-CoV-2. But recent evidence from the Institut Pasteur has identified several novel coronaviruses with similarities to the current coronavirus in bats. Profes...

Ebola can remain dormant for five years 19.09.2021

An international team of researchers has discovered that an outbreak of Ebola in Guinea in February this year was the result of re-activated Ebola virus in someone who’d been infected at least five years ago during the earlier large Ebola epidemic that swept through Guinea, Sierra Leone and Liberia. This means the virus can remain dormant in some Ebola survivors for five years or more. Virologists...

Keep most fossil fuel in ground to meet 1.5 degree goal 12.09.2021

For the world to have a decent chance of limiting global temperature rise to 1.5 degrees, 90 per cent of remaining coal reserves and 60% of unexploited oil and gas have to stay in the ground. These are the stark findings of carbon budget research by scientists at University College London. Dan Welsby spells out the details to Roland Pease. Virologist Ravi Gupta of the University of Cambridge descr...

Methane - a climate solution? 15.08.2021

The latest IPCC assessment raised alarm about the rate at which manmade emissions are contributing to climate change. Much of the focus for action is on reducing levels of carbon dioxide, however there is a more potent greenhouse gas, methane, produced by natural and industrial processes which, as Roland Pease tells Drew Shindell of Duke University and lead author on the Global Methane Assessment,...

Record-shattering weather 08.08.2021

July 2021 saw temperatures in the western US and Canada smash previous records by 5 degrees. And that’s what we should expect, according to a study prepared much earlier but published, coincidentally, just a few days later. A hallmark of rapid climate change, says author Erich Fischer of ETH Zurich, will be an accelerating number of record-shattering, and socially disruptive, events. A large new s...

Insects in incredible detail 04.07.2021

The Natural History Museum in London holds a massive collection of insects. It asked researchers at the Diamond light source, a facility near Oxford, to develop a high throughput X-ray microscope to take 3D scans of them all. Roland Pease has been to see the new technology in action. Many people seeking compensation for the impacts of climate change are turning to the law courts. Successes so far...

Nyiragongo Eruption 29.05.2021

The latest Nyiragongo eruption was not entirely unexpected, the volcano’s lava lake inside the crater had been building up for years. Local volcanologists say it was only a matter of time before an eruption occurred. The big concern was where the flank of the volcano would be breached as the city of Goma rests under the volcano and there are potential fissures even within the town. However there a...

Robot revolution 23.05.2021

A brain-computer interface allows a severely paralysed patient not only to move and use a robotic arm, but also to feel the sensations as the mechanical hand clasps objects . We hear from Jennifer Collinger at Pittsburgh University’s Rehab Neural Engineering Labs. And Nathan Copeland, who has been controlling the robotic arm with his thoughts via a series of brain implants. Ralph Baric of the Univ...

Covid and clean air 16.05.2021

We wouldn’t drink dirty water so why do we put up with polluted air? Researchers are calling for a major rethink on our attitude to air quality. Professor Lidia Morawska, from the Queensland University of Technology, says attention to air quality during the Covid pandemic has shown how levels of airborne disease can be reduced. Sam Wilson from the UK Medical Research Council, University of Glasgow...

Africa’s oldest burial 09.05.2021

Analysis of the 78,0000-year-old fossil of a Kenyan boy reveals he was likely buried with care and attention, the body wrapped and laid to rest supported on a pillow. Maria Martinon-Torres, of the National Research Centre on Human Evolution in Burgos, Spain, and a team from Kenya and Germany used techniques from paleontology and forensic science to reveal his story from the fragile remains. A prom...

Uncovering history with Little Foot's skull 07.03.2021

One of our most complete ancient ancestor’s fossils has been transported to the UK from South Africa in order to be scanned at the Diamond Light Source. Roland Pease investigates what these scans could reveal about the human story. Professor Corinne Le Quéré explains how she managed to look past the 7% reduction in human emissions caused by the pandemic in 2020 to reveal the impact of the Paris Cl...

Waste not, want not 28.02.2021

Although vaccines will go a long way to reducing the number of cases of Covid, there’s still a need for other approaches. One of these could be an engineered biomolecule, designed by virologists Anne Moscona and Matteo Porotto, that blocks SARS-CoV-2 precisely at the moment it tries to enter cells in the nose and upper airways. Roland Pease talks to Anne Moscona about this “molecular mask”. We’re...

Weird weather 21.02.2021

A paper in the BMJ shows that deaths from Covid 9 are being massively overlooked in Zambia. The new data come from post-mortem tests at the University Hospital mortuary in Lusaka, showing that at least 1 in 6 deaths there are due to the coronavirus; many of the victims had also been suffering from tuberculosis. Chris Gill of Boston University’s Department of Global Health, and Lawrence Mwananyanda...

Perseverance approaches Mars 14.02.2021

On 18th February the Perseverance rover should land on Mars. Katie Stack-Morgan of NASA’s Jet Propulsion Lab tells Roland Pease about the technological advances that mean that the spacecraft should be able to land in Jezero Crater. Imperial College geologist Sanjeev Gupta discusses what this crater can reveal about the history of life on the red planet. After months of negotiations, and weeks of w...

Mixing Covid vaccines 07.02.2021

A new trial is about to start in the UK, seeing if different vaccines can be mixed and matched in a two-dose schedule, and whether the timing matters. Governments want to know the answer as vaccines are in short supply. Oxford University’s Matthew Snape takes Roland Pease through the thinking. Despite the numbers of vaccines being approved for use we still need treatments for Covid-19. A team at t...

Saving the Northern White Rhino 24.01.2021

Northern white rhinos are extinct in the wild and there are just two females in captivity in Kenya. Conservationists are working on an artificial breeding programme, using eggs from the females and sperm from a deceased male. Now five embryos have been created. Thomas Hildebrandt of the Leibniz Institute for Zoo and Wildlife Research in Berlin explained the research. President Biden’s first execut...

Gravitational waves and black holes 17.01.2021

After collecting data for more than twelve years the North American Nanohertz Observatory for Gravitational Waves (NANOGrav) announced it may have detected new kinds of gravitational waves caused by colliding supermassive black holes. Professor Chiara Mingarelli of the University of Connecticut tells Roland Pease why this is such an exciting discovery. Supermassive black holes are at the heart of...

New variants of SARS-Cov2 10.01.2021

Mutant strains of SARS-Cov2 have been identified not only in the UK, where it was first identified, but also in at least 30 other countries. And to complicate matters, another alarming variant, with some similar mutations, has arisen in South Africa. Roland Pease talks to Ravi Gupta, a virologist at Cambridge University and Tulio de Oliveira of the University of KwaZulu Natal about these new strai...

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