As the new administration in the US continues to make cuts to government agencies and scientific funding, NOAA – the National Oceanic and Atmospheric Administration has been particularly trimmed. This week the professional organisation for weather forecasters – the American Meteorological Society has published a statement pleading for clemency, arguing that the whole US Weather Enterprise is at risk. It’s current president elect, veteran weather broadcaster Alan Sealls describes how it’s not jus...
Mar 06, 2025•44 min•Transcript available on Metacast Just two weeks ago the world learned of an asteroid that had an almost 3% chance of striking earth in less than a decade. Astronomers kept looking, and a team including Olivier Hainaut at ESO’s Very Large Telescope at Palanar, in Chile, have managed to narrow down the uncertainty such that we now know it will definitely not hit the earth. The secret of making such observations after most telescopes could no longer see it was down to the exceptionally dark skies there. But these may be under thre...
Feb 27, 2025•37 min•Transcript available on Metacast The Lancet this week features a paper calling for a financially sustainable network of influenza labs and experts across Europe. Marion Koopmans was one of the 32 expert signatures, and she describes how Europe needs to learn some lessons from the model developed previously in the US. The ongoing worries around avian H5N1 would be a great example of why funding for that sort of frontline strategic science needs not to be reliant on ad-hoc, potentially political, funding grants. This weekend, a c...
Feb 20, 2025•36 min•Transcript available on Metacast This week the recently spotted asteroid 2024 YR4 had its odds of missing us “spectacularly” slashed by 1 percentage point. Still nothing to worry about maintains Patrick Michel of the International Asteroid Warning Network, and he expects that with better tracking data in the next few months (even courtesy of the JWST) that tiny chance of collision will fall further. However, as he explains, it’s very comforting to know that we now have such a sophisticated tracking network, and even better, tha...
Feb 13, 2025•37 min•Transcript available on Metacast The mystery swarm of small earthquakes near the island of Santorini beg for more data collection. Also, the National Oceanic and Atmospheric Administration (NOAA) in the US goes offline and whales learn song like kids learn language. Presenter: Roland Pease Producer: Alex Mansfield Production co-ordinator: Josie Hardy (Photo: Greece earthquake. Credit: AFP)
Feb 06, 2025•33 min•Transcript available on Metacast Nasa's OSIRIS-REx mission to collect a sample from an asteroid has been a great success. Asteroid Bennu's sample yields a watery pool of history, thanks to an international team of scientists including the London Natural History Museum's Sarah Russell. Also, in a week of tumultuous changes to federal funding and programmes, we hear from some US scientists affected and concerned by Executive Orders from the White House. Betsy Southwood, formerly of the Environmental Protection Agency, is worried ...
Jan 30, 2025•41 min•Transcript available on Metacast Thirty per cent of the Arctic is switching from carbon sink to carbon source. But could future fertilizer be made deep underground using less resources? Also, how and perhaps why globally 2024 had the highest number of fatal landslides in over 20 years, and an unexpected sound from space prompts a re-evaluation of how the earth’s magnetic field interacts with the environment around it. Presenter: Roland Pease Producer: Alex Mansfield Production co-ordinator: Jana Bennett-Holesworth (Photo: Magni...
Jan 23, 2025•26 min•Transcript available on Metacast New types of snake-bite anti-venoms are designed by AI. Also, how much meat did human ancestors eat? How the Baltic Nord Stream gas pipeline rupture of 2022 was the biggest single release of methane ever caused by humans, and that Pluto met Charon, not with a bang, but more of a kiss. Using a high precision technique for spotting different isotopes of Nitrogen, Tina Lüdecke of the Max Planck Institute for Chemistry has concluded that a group of early hominin Australopithecus living in South Afri...
Jan 16, 2025•35 min•Transcript available on Metacast H5N1 bird flu is still spreading across farms in the USA and this week claimed its first human life in North America - an elderly patient in Louisiana infected by backyard poultry. But last week, Sonja Olsen, Associate Director for Preparedness and Response in the CDC’s flu division, and her colleague Shikha Garg, published new analysis in the New England Journal of Medicine summarizing the human cases and epidemiology so far. A lab study underscoring a suspected link between the virus responsib...
Jan 09, 2025•30 min•Transcript available on Metacast Sars CoV-2 has been with us for five years. In the second of a 2-part special, Science in Action asks how well was science prepared for it? And are we any better prepared for the next one? Presenter: Roland Pease Producer: Alex Mansfield, with Debbie Kilbride Production Coordinator: Jana Bennett-Holesworth
Jan 02, 2025•28 min•Transcript available on Metacast Sars CoV-2 has been with us for five years. In the first of a two-part special, Science in Action asks how well was science prepared for it? And are we any better prepared for the next one? Presenter: Roland Pease Producer: Alex Mansfield, with Debbie Kilbride Production co-ordinator: Jana Bennett-Holesworth
Dec 26, 2024•28 min•Transcript available on Metacast New insights into how our skin learns to tolerate and co-exist with bacteria on its surface show great potential for the development of simpler and less invasive vaccines. Stanford University’s Djenet Bousbaine has published two papers in Nature detailing the microbiological research and mouse vaccination experiments that could change the future of immunisation. The Sun is the hardest place in the Solar System to reach. But by the time the next edition of Science in Action is on air, NASA’s Park...
Dec 19, 2024•27 min•Transcript available on Metacast Heatwaves in the pacific ocean have had a devastating effect on seabird populations in the north eastern US. Julia Parrish and colleagues publish this week 4 million deaths of Alaskan common murres attributable to rising water temperatures during 2014-16, representing half the population. One idea is that the fish on which the birds feed swim at deeper depths to find cooler temperatures, taking them below the depth the birds can dive. Worse, the reduced population numbers have endured almost ten...
Dec 12, 2024•34 min•Transcript available on Metacast Scientists have found that just one mutation in the current H5N1 virus in cattle can switch its preference from avian to human receptors. Jim Paulson and colleagues at the Scripps Institute did not use the whole virus to investigate this, but proteins from one of the Texas farm workers found to be infected. It suggests the bovine H5N1 virus has already evolved subtly. Meanwhile, Richard Webby of St. Jude Children's Research Hospital in Memphis helps us catch up on the latest known about the case...
Dec 05, 2024•34 min•Transcript available on Metacast November 1974 became known as the “November Revolution” in particle physics. Two teams on either side of the US discovered the same particle - the “J/psi” meson. On the "J" team, at the Brookhaven National Laboratory, Sau Lan Wu and colleagues were smashing protons and neutrons together and looking for electrons and positron pairs in the debris. Over at Stanford on the other side of the US, Dr Michael Riordan was in a lab with the "psi" team who, in some ways the other direction, were smashing e...
Nov 28, 2024•39 min•Transcript available on Metacast It is hard not to have noticed the intensity of storms around the world this year, not least the Atlantic storms that battered the eastern US. A new study, using a new technique, confirms their attribution to climate change, and goes further, finding that many of them were actually raised in intensity category compared to how strong they might have been in a world without anthropogenic climate change. The costs are already extraordinary, according to Daniel Gilford of Climate Central in Princeto...
Nov 21, 2024•34 min•Transcript available on Metacast Before December, the United Nations aims to have a global treaty in place covering efforts to limit global plastic production and pollution. In a paper in the journal Science, a team of scientists have used machine learning to estimate what happens by 2050 if we do nothing. But they have also found that the problem is solvable, with the right political will, and as marine ecologist Neil Nathan of UCSB points out, with surprisingly little new rules, waste could be reduced by 91%. Machine learning...
Nov 14, 2024•32 min•Transcript available on Metacast Many coronaviruses exist in nature that we don’t know much about. We don’t even know how and whether most of them might bind to human cells. Research published in Nature, by scientists at Wuhan and Washington Universities, describes a new way of designing novel receptor sites on cell cultures so that many types of coronavirus may now be cultured and studied to ascertain their risk to humans. Cambridge virologist Ravindra Gupta, who is not one of the authors, gives Science in Action his take on t...
Nov 07, 2024•29 min•Transcript available on Metacast This week at least 150 people have been killed due to devastating flash flooding sweeping through areas of Valencia in Spain. Ana Camarasa Belmonte, Professor of Physical Geography at the University of Valencia, has been studying the flood patterns and hydrology of the area for years. Even she was astounded by the magnitude of the inundation. And, as Jess Neumann of Reading University in the UK tells Roland, part of the tragedy is that the effective communication of risk somehow relies on citize...
Oct 31, 2024•34 min•Transcript available on Metacast Betelgeuse, one of the brightest and most famous stars in the northern night sky, has varied in brightness with an elusive pattern ever since observations began. Many theories exist as to why it ebbs and flows with apparently two distinct rhythms – one shorter and another around 2000 days long. But just recently two independent astronomical teams have unveiled papers suggesting the existence of an orbital companion circling the red giant. About the size of our own sun, the “Betelbuddy” may whizz...
Oct 24, 2024•36 min•Transcript available on Metacast The “dewilding” effects of fish farming and mariculture are in the spotlight this week. Farmed fish can impact marine ecosystems in several ways, and surprisingly one of those is the effect it has on consumer perceptions of the impact of eating farmed fish, as researchers Becca Franks of NYU and Laurie Sellars at Yale suggest. Meanwhile, Manu Prakesh and colleagues at Stanford University in the US have found a remarkable plankton that can traverse the depths of the oceans by ballooning to five t...
Oct 17, 2024•36 min•Transcript available on Metacast In the week the Nobel prizes for science are announced, Roland Pease takes a look at the stories behind the breakthroughs being recognized, and the themes that connect them. From the discovery of the tiny fragments of RNA that regulate our cells’ behaviour, via computer structures that resemble our brains, and harnessing those sorts of computers to design drugs and medicines, it has been one of the most interdisciplinary years for the prize panellists. We hear from old students, recent colleague...
Oct 10, 2024•38 min•Transcript available on Metacast As we were putting the finishing touches to last week’s Science in Action, the US National Weather Service was warning of Hurricane Helene’s fast approach to the Florida coast – alerting people to ‘unsurvivable’ storm surges of up to 6 metres. But the category 4 storm powered, as forecast, far past the coast and into the rugged interior of Tennessee and the Carolinas. 150 billion tonnes of rainfall are estimated to have been dumped there, with devastating consequences for the towns and villages ...
Oct 03, 2024•34 min•Transcript available on Metacast 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...
Sep 26, 2024•27 min•Transcript available on Metacast The Sahara Desert has been experiencing unusually heavy rainfall due to an extratropical cyclone, causing flash floods in Morocco. We hear from Moshe Armon of the Hebrew University of Jerusalem. A 485-million-year temperature record of Earth reveals Phanerozoic climate variability. Brian Huber of the Smithsonian National Museum of Natural History in Washington DC tells us more. And Mary Lewis of Reading University discusses new research looking into what puberty was like for our ancestors toward...
Sep 19, 2024•27 min•Transcript available on Metacast Nearly a year ago, the top of a mountain on the Greenland coast broke off and slid a thousand metres down into the Dickson Fjord. The impact created a tsunami that started two-hundred-metres-high and sloshed between the cliffs for nine days, producing a global seismic signal. But it was so remote, only now are the details becoming clear. We hear from Paula Koelemeijer, Wieter Boone and Søren Rysgaard. The decline of the ancient inhabitants of Rapa Nui was unlikely to have been caused by a self-i...
Sep 12, 2024•29 min•Transcript available on Metacast A Chinese survey of diseased animals farmed for their fur – such as mink, foxes and raccoon dogs - has revealed high levels of concerning viruses, including coronaviruses and flu viruses, many of which appear to jump easily from species to species. John Pettersson of Uppsala University discusses the threat to us humans. We learnt early on in the Covid-19 pandemic how important the genetic details of the virus were in tracking the spread and spotting new variants. The vaccines were designed from ...
Sep 05, 2024•31 min•Transcript available on Metacast In 1977 astronomers recorded a brief and strange radio transmission that looked like it perhaps had even come from an alien civilization. It was named the Wow! signal – because that’s what astronomer Jerry Ehman wrote on the computer printout upon its discovery. But now a team including Abel Méndez of the University of Puerto Rico at Arecibo have come up with an astrophysical hypothesis. An oil tanker which was attacked by Yemen's Houthi rebels in the Red Sea last week is still on fire and may b...
Aug 29, 2024•29 min•Transcript available on Metacast Fishery assessment models – the “backbone” of fisheries management – overestimate the sustainability of the world’s fisheries, according to a study of 230 fisheries worldwide, and populations of many overfished species are in far worse condition than has been reported. We hear from Rainer Froese of GEOMAR - Helmholtz Centre for Ocean Research Kiel. The lunar south pole contains evidence of ancient magma ocean. An analysis of lunar soil in the Moon’s southern high-latitude regions, performed usin...
Aug 22, 2024•29 min•Transcript available on Metacast In June this year there was the first detected occurrence of rabies in Cape fur seals, discovered after a rabies case in a dog that had been bitten by a seal. Professor Wanda Markotter, Director of the Centre for Viral Zoonoses at University of Pretoria, has been trying to work out how the virus spread into seals and how to keep people (and their pet dogs) safe. The Japan Meteorological Agency issued a seismic “advisory” last week alerting local authorities and the public to a heightened risk of...
Aug 15, 2024•30 min•Transcript available on Metacast 
