Y chromosome; Everest avalanche; Aphid survey; Longitude

Y chromosome; Everest avalanche; Aphid survey; Longitude

Y Chromosome We learn from a young age that if a fertilised egg carries XX chromosomes it will be a girl, but with XY it will be a boy. This male Y sex chromosome has lost many genes along its evolution over the past 180 million years and now only about 20 genes remain. Now two new studies in Nature journal have given clues into how the Y chromosome evolved into its current state by looking at the genetic make up of 15 species the team built an archaeological record of all the mutations that occurred over time - to trace the timing of how the Y originated.... Professor Henrik Kaessmann from the University of Lausanne in Switzerland explains that the genes that remain play a more important role than previously believed.

Everest Avalanche Last week the biggest single loss-of-life event occurred on Everest: a huge avalanche killed 16 Sherpa guides. All were so-called "icefall doctors", possibly the riskiest job of all, which involves finding a route through the broken mass of icefall, and then securing ladders and ropes for mountaineer tourists to follow. The Himalayan Sherpas have abandoned the climbing season out of respect for the fallen. There are many questions about health and safety, but we want to know what could be done to help? BBC Science Reporter Victoria Gill has been looking at the science behind avalanches, Are avalanches predictable? And will global warming in the Himalayan region make them more common?

Aphid Survey This month the Rothamsted Research in Hertfordshire's Insect Survey will have been monitoring national aphid populations for fifty years. Aphids, such as greenfly and blackfly, can cause extensive damage to plants and crops. The aphid season - as many gardeners will know - is just about to start. But how has the recent mild, wet winter affected their numbers?

Lichens An Inside Science listener emailed in to ask about lichens - what are they and how do they live. We called in plant ecologist Professor Howard Griffiths, at the University of Cambridge to fill us in on these hardy, pioneering organisms.

Longitude 300 years ago there was no way of knowing the position of a ship out on the high seas. The greatest scientific challenge of the age was navigation. Britain's response was to offer a large prize fund for the solution to the problem of Longitude. Richard Dunn, curator and head of science and technology at Royal Museums Greenwich tells Marnie Chesterton the story of John Harrison, a clockmaker and carpenter, who solved this seemingly impossible problem.

Producer: Fiona Roberts.

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What’s the evidence for vaccines?

What’s the evidence for vaccines?

US Health Secretary Robert F Kennedy Jr announced plans this week to cancel $500 million dollars of funding for mRNA vaccine development. The research was focusing on trying to counter viruses that cause diseases such as the flu and Covid-19.Marnie Chesterton is joined by Professor Anne Willis, Director of the MRC Toxicology Unit at the University of Cambridge, to explore the claims made by The US Department of Health and Human Services that the technology “poses more risks than benefits”, and to look at the evidence behind the vaccines.We also visit the most powerful computer the UK has ever seen at the University of Bristol, and explore how the Isambard-AI supercomputer is being used to carry out groundbreaking new research.After last week’s call for our listeners to pay homage to the satirical songwriter and mathematician Tom Lehrer, who died at the age of 97, we hear a range of your brilliant musical tributes.And Marnie is joined by journalist Caroline Steel to explore the week’s fascinating scientific discoveries.Presenter: Marnie Chesterton Producers: Clare Salisbury, Dan Welsh, Jonathan Blackwell Editor: Martin Smith Production Co-ordinator: Jana Bennett-Holesworth

4 Sep 28min

Why wasn’t the Russia mega earthquake as damaging as previous ones?

Why wasn’t the Russia mega earthquake as damaging as previous ones?

A massive 8.8 magnitude mega earthquake off Russia's east coast sent tsunami waves into Japan, Hawaii and the US west coast this week. While more than two million people across the Pacific were ordered to evacuate, there were no immediate reports of any fatalities. After recent devastating tsunamis like the ones that hit Fukushima in 2011 and the Boxing Day disaster of 2004, we speak to Environmental Seismology lecturer at University College London, Dr Stephen Hicks, to ask why this quake didn’t cause anywhere near the same amount of harm.After the Lionesses successfully defended their UEFA European Women’s Championship, Marnie Chesterton is joined by Professor of Sports Engineering at Sheffield Hallam University, Steve Haake, to looks at the role data analysis and Artificial Intelligence is now playing in football and other sports.We hear about fascinating new research from primatologist Professor Cat Hobaiter at the University of St Andrews into what we can learn about our evolution by studying how apes eat alcoholic fermented fruit.And Marnie is joined by technology broadcaster Gareth Mitchell to hear about the week’s brand new scientific discovery news, and for a musical homage to the satirical songwriter and mathematician Tom Lehrer, who died this week at the age of 97.Presenter: Marnie Chesterton Producers: Clare Salisbury, Dan Welsh, Jonathan Blackwell Editor: Martin Smith Production Co-ordinator: Jana Bennett-Holesworth

28 Aug 28min

The surprising culture of the animal kingdom

The surprising culture of the animal kingdom

We discuss the incredible science of the animal kingdom, focusing on the latest fascinating research into animal culture, society and communication.Victoria Gill is joined by a panel of experts in front of a live audience at the Hay Festival to hear about their research all over the world into animal behaviour.Taking part are:Jemima Scrase, who is currently finishing her PhD at the University of Sussex investigating matriarchal leadership in African elephants, and has spent most of the last few years out in the field in Kenya, working in collaboration with the charity Save the Elephants.Dr Manon Schweinfurth, a Senior Lecturer in the School of Psychology and Neuroscience at the University of St Andrews, who runs a lab investigating the evolutionary and psychological origins of cooperation.And Andy Radford, a Professor of Behavioural Ecology at the University of Bristol, who studies social behaviour and communication, and particularly how vocalisations are used to mediate cooperation and conflict.

21 Aug 27min

How can we keep our homes cool in a changing climate?

How can we keep our homes cool in a changing climate?

After three UK heatwaves, we turn to science for solutions that could keep us safer, and cooler, in our homes. Professor of Zero Carbon Design at the University of Bath, David Coley, explains how our houses could be better designed to handle climate change.This week the UK Space Conference has come to Manchester. Victoria Gill is joined by Tim O’Brien, Professor of Astrophysics at the University of Manchester, for the latest space science news.We also hear from technology journalist Gareth Mitchell on a curious headache for the tech companies rolling out driverless taxis, in the form of plastic bags. And we speak to a group of high school students who have been spending their lunch breaks extracting and analysing daffodil DNA.Presenter: Victoria Gill Producers: Dan Welsh, Jonathan Blackwell, Clare Salisbury Editor: Martin Smith Production Co-ordinator: Jana Bennett-Holesworth

14 Aug 28min

How can we reduce the impact of plastic on the environment?

How can we reduce the impact of plastic on the environment?

Next month world leaders will again gather to focus on dealing with our global plastic problem. So this week we’re looking for solutions. Marnie Chesterton hears from Professor of Sustainable Chemical Engineering at the University of Sheffield, Rachael Rothman on how we can engineer safer, more environmentally friendly plastics. And at the other end of the plastic spectrum, she hears about the clean up operation after the world’s biggest ocean spill of nurdles – tiny plastic pellets which are used to make plastic products. Investigative environmental journalist Leana Hosea brings the results of her investigation into the clean up after the X-Press Pearl container ship caught fire and sank 4 years ago.Mark Miodownik, University College London Professor of Materials & Society returns to the studio with the results of a citizen science project to try to get more data on potty training. It aims to encourage parents to get toddlers out of nappies earlier.And Penny Sarchet, managing editor at New Scientist brings her pick of this week’s newest scientific discoveries.Presenter: Marnie Chesterton Producers: Clare Salisbury and Dan Welsh Editor: Martin Smith Production Co-ordinator: Jana Bennett-Holesworth

7 Aug 28min

How do you turn facial expressions into music?

How do you turn facial expressions into music?

A microscopic water flea that could help monitor our waterways for pollution, turning both quantum circuits and facial expressions into music, and how animals use vibrations to sense the world around them.These are some of the cutting edge research projects being presented at the Royal Society Summer Science Exhibition in London. Victoria Gill is joined by Caroline Steel for a special episode from the exhibition, meeting the researchers showcasing their work and getting hands on with the science on display.We speak to Daisy Shearer from the National Quantum Computing Centre, PhD student Clelia Altomonte from King's College London, Dr Beth Mortimer from the University of Oxford who leads its Animal Vibration Lab (the multisensory experience was developed and narrated by Dr Alice Morrell), Dr Katie Reilly from the University of Birmingham, the CEO of the charity Drake Music, Sally Currie, and the designer of the PhotoSYNTH accessible musical instrument, Zenon Olenski.

31 Juli 27min

What happens when you bomb a uranium enrichment site?

What happens when you bomb a uranium enrichment site?

All eyes have been on three of Iran’s nuclear facilities this week. The targets of an attack on Saturday by the United States. Marnie Chesterton asks Professor Simon Middleburgh, nuclear materials scientist at the Nuclear Futures Institute at Bangor University what the impact could have been.As the first images are revealed from the world’s most powerful optical telescope, Professor Chris Lintott brings us news of how you can get involved in scouring the depths of the universe. Caroline Steel brings us the science news that has scientists excited this week, and Marnie visits the first new dinosaur to go on show at London’s Natural History Museum for more than a decade.Presenter: Marnie Chesterton Producers: Dan Welsh, Jonathan Blackwell & Clare Salisbury Editor: Glyn Tansley Production Co-ordinator: Jana Bennett-Holesworth

24 Juli 28min

Are trees the answer to solving climate change?

Are trees the answer to solving climate change?

As a new warning is released by scientists that trying to offset our carbon emissions by planting trees alone won’t work, we investigate the role the Earth’s forests are playing in the fight against climate change.Marnie Chesterton is joined by Mark Maslin, Professor of Earth System Science at University College London, to help answer our top five questions about trees and CO2. We also speak to science writer and New York Times columnist Carl Zimmer about his new book ‘Air-Borne: The Hidden History of the Life We Breathe’, and what it tells us about what we’re breathing into our lungs each day. After we reported on the plight of some of our UK wild bird species earlier this year, many listeners got in touch wanting to know more about one species in particular: house sparrows. To look at why their numbers have been declining so sharply, and what we might be able to do about it, we hear from Imperial College London’s Dr Julia Schroeder, who has been studying the birds for 15 years.And Marnie is joined in the studio by Lizzie Gibney, Senior Reporter at Nature, to explore some of the fascinating research from around the world in this week’s science journals.Presenter: Marnie Chesterton Producers: Clare Salisbury, Dan Welsh and Jonathan Blackwell Editor: Martin Smith Production Co-ordinator: Jana Bennett-Holesworth

17 Juli 28min

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