The astrophysicist Professor Lisa Kaltenegger is like an explorer of old, but her voyage takes her far from earth, planet hunting across the universe. She is Director of the Carl Sagan Institute to Search for Life in the Cosmos at Cornell University, and in her new book Alien Earths she describes the very latest discoveries of exoplanets which are the best contenders for harbouring alien life.  Claudia de Rham is Professor of Theoretical Physics at Imperial College London and in her book The Beauty of Falling she tells the story of gravity. From her personal experience of diving in the ocean and freefalling over the earth, to exploring the limits of Einstein’s general theory of relativity she seeks to understand both the feeling and the fundamental nature of gravity. If only all of physics could be so compelling! Professor Mark Fromhold is Head of Physics at Nottingham University and is campaigning for a change to the way pupils are taught, suggesting that quantum physics be incorporated into the curriculum. He argues that at present the subject is too earth-bound, and ‘dull as dishwater’. Producer: Katy Hickman

Alien life and gravity

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As a new exhibition opens in Liverpool exploring the survival of bees Start the Week takes stock of the life and times of this extraordinary insect. The artist Wolfgang Buttress uses a fusion of art, science and technology to create a sensory experience of the sights and sounds of bees. Bees: A Story of Survival is on at the World Museum, Liverpool until May 2025. They’ve been around for over 120 million years and Lars Chittka, Professor of Sensory and Behavioural Ecology at Queen Mary University of London, says the thousands of different bee species have evolved a huge diversity of lifestyles and are some of the most intelligent animals on Earth. They not only use a symbolic language, can count, use tools and learn by observation, but are now believed to have an emotional hinterland. For millennia, bees have held a special significance in human culture.  Claire Preston, Professor of Renaissance Literature at QMUL, traces the symbolism of bees through historical and literary records, from ancient political analogies to today’s discussions about hive minds. While there are increasing fears about the future of bees as they battle exposure to pesticides, diseases and habitat destruction, Alison Benjamin is one of a growing number of people trying to raise awareness. She is the co-founder of Urban Bees and wants to shift the focus away from farmed hives of honey bees which are growing in popularity in cities, to the protection and survival of wild and solitary bees. Producer: Katy Hickman

Bees – culture and survival

May Day is the title of Jackie Kay’s new collection. The former Makar of Scotland explores a history of political protest, and the cultural influencers of the past, from Rabbie Burns to the poet Audre Lorde and Paul Robeson. She also celebrates the lives and activism of her parents, and grieves for their loss.  The Green MP Caroline Lucas wants to reclaim and rewrite England’s national story in her book, Another England. By exploring its radical tradition through its literary heritage she seeks to foreground the diverse writers and poets who spoke of a shared sense of identity and purpose, and a deep-rooted commitment to the natural world.  The journalist and writer Simon Heffer looks back a century to the interwar period, a time of radical transformation of British society post the Great War, as many of the old attitudes started to be swept away. In his history, Sing As We Go, he shows how the culture of the time both shaped and reflected these changes. Producer: Katy Hickman

Protest and patriotism

London, and the river that runs through it, is at the heart of the new play London Tide, an adaptation of Charles Dickens’ Our Mutual Friend. Ben Power has adapted the novel and co-written original songs with the singer-songwriter PJ Harvey. He tells Adam Rutherford that although it combines the savage satire and social analysis of the original, it is, in essence, a love letter to the capital. London Tide is playing at the National Theatre until 22nd June. The award-winning architect Amanda Levete reflects on the challenges of designing buildings and public spaces in major historic cities around the world – taking into consideration the aesthetics of the built environment, whilst meeting the needs of the community and tackling sustainability. Amanda Levete considers the Pompidou Centre in Paris to be one of the twentieth century’s most iconic buildings and an inspiration for her own architectural practice. The journalist Simon Kuper takes stock of his adopted city, as Paris prepares for the Olympics. In Impossible City he explores today’s ‘Grand Paris’ project which aims to connect its much famed central areas with its neglected suburbs. Producer: Katy Hickman

City living

2024 has been dubbed the year of elections, as at least 64 countries – including the UK – are heading for the polls. Tom Sutcliffe and guests explore the state of democracy. The political philosopher Erica Benner reflects on the tensions in liberal democracy in her book, Adventures in Democracy: The Turbulent World of People Power. From her childhood in post-war Japan, to working in post-communist Poland, and with forays into ancient Greece and Renaissance Erica Benner looks at the role of ordinary citizens in keeping democracy alive. Democracy in India has a long history with roots in ancient councils of elders, although its modern manifestation began with independence from British rule in 1947. But the anthropologist Alpa Shah raises questions about how far democratic institutions are failing in India, as minority groups - the Dalits, Adivasis and Muslims - are  targeted and demonised, in her new book The Incarcerations.  The UK will have a general election this year, and although satisfaction with politics ranks very low in relation to other countries, faith in democracy continues to rise. The research is by the Policy Institute at King’s College London, and its director Bobby Duffy says that while there’s little support for authoritarian forms of government, the idea of Citizen Assemblies are becoming more popular. Producer: Katy Hickman

Alien life and gravity

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