The Conversation Weekly

Both the U.S. and China have plans to establish a permanent human presence on the Moon. You might be wondering: why now? The answer to that is the relatively recent discovery of water on the Moon. The question of how humanity will establish a Moon base is perhaps a deeper and more important one. We speak with two people, a planetary scientist who studies lunar geology and a scholar who works on sp...

On March 19, 2003, the United States led an unlawful invasion into Iraq, occupying the country for over eight years until the official withdrawal of troops throughout 2011. It is estimated that around 405,000 deaths occurred as a direct result. Most of these deaths were of Iraqi civilians, hundreds of thousands of others were injured, and over nine million displaced. The invasion was followed by t...

Without a sense of time, leading us from cradle to grave, our lives would make little sense. But on the most fundamental level, physicists aren't sure whether the sort of time we experience exists at all. We talk to three experts and find out if time could potentially be moving backwards as well as forwards.   Featuring Sean Carroll , Homewood professor of natural philosophy at Johns Hopkins...

When ChatGPT burst onto the technology world in November 2022, it gained 100 million users within just two months after its launch. The technology itself is fascinating, but part of what makes ChatGPT uniquely interesting is the fact that essentially overnight, most of the world gained access to a powerful generative artificial intelligence that they could use for their own purposes. We speak with...

An international team of biologists has discovered a tiny new species of owl, called the Príncipe scops owl, living in a remote forest on an island off the west coast of Africa. Featuring Bárbara Freitas, a Ph. D. fellow who studies bird evolution at the National Museum of Natural Sciences in Madrid. This episode was written and produced by Katie Flood and hosted by Dan Merino. The interim executi...

Our dependence on fossil fuels is one of the biggest challenges to overcome in the fight against climate change. But production and consumption of fossil fuels is on the rise, and expected to peak within the next decade. We speak to two researchers who examine the political challenges of transitioning to a world after oil, and what it means for those states who rely on oil for resources. Featuring...

Social isolation and loneliness are increasingly becoming a societal problem, as they increase polarization and impact on our physical health. In 2018, two years before the pandemic, the United Kingdom created a ministerial portfolio for loneliness . Japan, where nearly 40 per cent of the population report experiencing loneliness , began a similar position in 2021. We speak to three researchers wh...

Despite the many biological differences between people of different sexes, races, ages and life histories, chances are that if two people walk into a doctors office with the same symptoms, they are going to get the same exact treatment. As you can imagine, a whole range of treatments – from drugs to testing – could be much more effective if they were designed to work with many different kinds of b...

During the COVID-19 pandemic, the demographics of cities shifted. As stay-at-home orders, remote work and bubbling reduced social interaction, and restaurants, venues and arts destinations shut down temporarily, people started reconsidering their decision to remain in a big city. We spoke with two urban theorists about why people were leaving larger cities for smaller ones, how authenticity was ma...

Whether you’re looking at tropical forests in Brazil, grasslands in California or coral reefs in Australia, it’s hard to find places where humanity hasn't left a mark. The scale of the alteration, invasion or destruction of natural ecosystems can be mindbogglingly huge. Thankfully, researchers, governments and everyday people around the world are putting more effort and money into conservation and...

During the years of suffering and tragedy that defined the Warsaw Ghetto in the midst of World War II, a team of Jewish doctors secretly documented the effects of starvation on the human body when the Nazis severely limited the amount of food available in the Jewish ghetto. Featuring Merry Fitzpatrick , an assistant professor at Tufts University who studies food security and malnutrition. This epi...

Across the globe, health-care workers have gone on strike to protest the stress placed on them by the global COVID-19 pandemic and economic downturn, pushing already-strained services beyond their limits. These labour actions are part of the challenges faced by countries attempting to provide welfare services to their populations. We talk to three experts about why social welfare services are bein...

Reindeer's noses may not glow red, but these cold-loving creatures have evolved the ability to change the color of their eyes to help them thrive in northern winters. A neuroscientist explains how he discovered that a part of the reindeer eye called the tapetum lucidum is perfectly adapted to the dim, blue in the Arctic. Featuring Glen Jeffery, a professor of neuroscience at the Institute of Optha...

If you want to know what happened in the earliest years of the universe, you are going to need a very big, very specialized telescope. Much to the joy of astronomers and space fans everywhere, the world has one – the  James Webb Space Telescope . In this episode, we talk to three experts about what astronomers have learned about the first galaxies in the universe and how just six months of da...

How do you get a country to change its national diet? That’s what China has been trying by introducing potato as a staple as part of an effort to improve food security. In this episode, we talk to three experts about why countries need to shift what their citizens eat, and what the optimum diet for our planet might be.  Featuring Xiaobo Xue Romeiko , assistant professor of Environmental Healt...

In the latest episode of Discovery, an ongoing series where we explore the stories behind new research discoveries from around the world, we hear about how a Muslim celebrity footballer helped reduce Islamophobia. In this episode, Salma Mousa , assistant professor of political science at Yale University in the US, explains how she found a "Mo Salah effect" and why she's now testing how durable it...

The amount of alcohol young people drink in many high-income countries has seen a marked decline since the early 2000s. But in many developing countries, the opposite is happening. In this episode we talk to three experts studying trends in youth drinking to find out why and explore the questions this raises about the way young people see themselves and their place in the world.  Featuring Am...

Mental illnesses like obsessive compulsive disorder, depression and addiction are notoriously hard to treat and often don't respond to drugs. But a new wave of treatments that stimulate the brain with electricity are showing promise on patients and in clinical trials. We talk to three experts and one patient about the history of treating mental illness, how new technology and deeper understan...

There are many competing theories about what causes Alzheimer's disease. For more than 30 years, Ruth Itzhaki has been accumulating evidence that viruses are involved in its development in the brain. We investigate in the In the third and final part of Uncharted Brain: Decoding Dementia. Featuring Ruth Itzhaki , professor emeritus of molecular neurobiology at the University of Manchester in the UK...

In the second of a three-part series, Uncharted Brain: Decoding Dementia , we explore chronic traumatic encephalopathy, a form of dementia that athletes from a whole range of sports can develop. We hear about the toll it can take on family members, who are often unaware of what’s happening to their loved ones. Featuring Matthew Smith , a senior lecturer in sport and exercise psychology at the Univ...

This week we're running a three-part series called Uncharted Brain: Decoding Dementia exploring new research searching for answers to how dementia works in the brain and the damage it leaves behind.  The series is hosted by Paul Keaveny and Gemma Ware and was initially published via The Anthill podcast from the team at The Conversation in the UK. In the first episode, we explore how a study w...

Momentum is growing for objects stolen during the colonial era that are now held in museums in Europe and North America to be returned to the places and communities that they were taken from. We talk to three experts about what happens to these objects once they're returned and the questions their restitution is raising about the relationship between communities and museums in Africa.  Featur...

From the US, to Brazil, to India, deepening political polarisation is used as a frame through which to see a lot of 21st century politics. But what can actually be done to depolarise deeply divided societies, particularly democracies? In this episode we speak to a political scientist and a philosopher trying to find answers to that question.  Featuring Jennifer Lynn McCoy , professor of polit...

Welcome to the first episode of Discovery, a new series via The Conversation Weekly where we hear the stories behind new research discoveries from around the world. In this episode, Ruth Mace , professor of anthropology at University College London in the UK, explains how her research with the families of Tibetan monks in China suggests celibacy might have some surprising evolutionary advantages.&...

Humans do a lot of different things to the environment, and there aren’t many natural processes that can rival the scale of changes brought on by human activity. In this episode, we speak to three experts who study different ways that human action – from radiation to pollution to urbanization – is affecting how plants and animals evolve, and how humanity has become the single biggest driver of evo...