The deep sea is the last, vast wilderness on Earth. In The Brilliant Abyss the marine biologist Helen Scales dives below the surface to tell the story of our relationship with the ocean floor. With an average depth of 12,000 feet it remains a frontier for new discoveries and extraordinary creatures. But Helen Scales warns Andrew Marr of the unfolding environmental disasters as people seek to exploit this new world, far beyond the public gaze.The writer Philip Hoare explores nature through the work of the artist Albrecht Dürer. From his 15th century prints of the plague-ridden Apocalypse to his leviathans in the deep, Dürer’s works were a revelation. In Albert & the Whale Hoare writes about the enduring quality of his art and its powerful message about the fragile beauty of the natural world.The journalist Elizabeth Kolbert is the author of the international bestseller, The Sixth Extinction, which was a clear-eyed account of humanity’s impact on the Earth. In Under A White Sky she asks whether through scientific innovation we can reverse some of the damage done. She meets those re-engineering ‘super coral’ which can withstand hotter waters and those tasked with saving the rarest fish species in the world.Producer: Katy Hickman

Kerri ní Dochartaigh was born in Derry-Londonderry at the height of the Troubles, to a Catholic mother and Protestant father. In Thin Places she traces a life affected by poverty, loss and violence, and the invisible border that runs through it. But she tells Kirsty Wark how the natural world has helped heal the traumas of childhood.For the writer Sally Bayley it was Shakespeare that brought her solace and ignited her imagination. Growing up in a working class household with no father figures Bayley roamed through his plays looking for companions and escape from her oppressive home. In No Boys Play Here: A Story of Shakespeare & My Family’s Missing Men she explores the crisis of male homelessness and mental illness.The award-winning actress Lisa Dwan has a deep affiliation with the works of Samuel Beckett. But in her latest performance she reaches back to the ancient Greek tragedians reimagined by another acclaimed Irish writer Colm Tóibín. In Pale Sister she recounts Sophocles’ tragedy of Antigone from the viewpoint of her sister, Ismene. Producer: Katy Hickman

What happens when real life collides with your digital existence – the writer and ‘Poet Laureate of Twitter’ Patricia Lockwood talks to Andrew Marr. In her highly original novel, No One is Talking About This, Lockwood’s narrator becomes overwhelmed as drama in the human world encroaches on the life she leads online.Roisin Kiberd is part of the internet generation and believes the line between online and IRL has become so porous as to become meaningless. From the lure of endless scrolling, to the glamour of self-optimisation and the boundless possibility of connectivity, Kiberd explores the ups and downs of this new reality in a series of essays, The Disconnect.In a new series on Radio 4, Sideways, Matthew Syed exploits different ways of seeing the world to connect disparate ideas and offer new insights. He examines the online craze of ‘randonauting’ – in which an app sends people on random adventures – to unpick the misunderstanding of probability using digital and real life examples. Producer: Katy Hickman

Britain is a direct product of its imperial past. So argues the writer Sathnam Sanghera in his latest book, Empireland. He tells Tom Sutcliffe how we need to move beyond simplistic feelings of shame or pride in Britain’s empire if we are to truly understand who we are.It’s not just the story of empire shaping modern Britain but the longer more entrenched history of class. In Snakes and Ladders: The Great British Social Mobility Myth, the historian Selina Todd explores how class distinctions still prevail today.Class and empire weave their way into the work of the poet Anthony Anaxagorou. His family is from Cyprus - an island deeply divided and with a history of colonisation. He charts his rise as a poet in the pocket-book series, ‘How to… Write it’. And his last collection, After the Formalities, explores the anxieties inherent in his British and Cypriot heritage. Producer: Katy Hickman

He was born into abject poverty in Czechoslovakia, fought for the British and was decorated for his heroism in WWII, and became a successful businessman and press baron courted by political leaders around the world. Yet Robert Maxwell ended his life reviled as the embodiment of greed and corruption. The writer John Preston discusses his book, Fall: The Mystery of Robert Maxwell, with Andrew Marr.The journalist Julia Langdon was appointed the political editor of the Daily Mirror in 1984 when Maxwell owned the newspaper. She looks back at his often extraordinary behaviour. But Langdon also examines the difficult and changing relationship between those in power in politics and the media moguls.Maxwell was brash and theatrical working from luxury apartments at his rechristened Maxwell House, complete with Doric columns at the entrance. Emily Bell, formerly a media journalist now academic at Columbia University, sees certain parallels with Trump Tower. But the media landscape since Maxwell’s days has changed dramatically, and it’s now the owners of today’s social media companies who wield the power.Producer: Katy Hickman

Mariana Mazzucato, Professor of Economics at University College London, tells Amol Rajan it’s time western governments took a braver approach to the biggest problems of our time – inequality, disease and environmental crisis. In her book, Mission Economy, she argues that capitalism has foundered. Taking inspiration from President Kennedy’s decision in 1962 to put a man on the moon by the end of the decade, she calls for a greater sense of purpose from governments and a bolder public-private cooperation. The former cabinet minister and Liberal Democrat leader Vince Cable looks back over the last 250 years to understand the power politicians have to transform their countries’ fortunes, for better or worse. In Money and Power – The World Leaders who Changed Economics he ranges from Thatcher to Trump, from Lenin to Bismarck to examine the interplay of economics and politics.But what happens when people begin to feel the economy is broken. In Why You Won’t Get Rich the journalist Robert Verkaik aims his ire at capitalism and the failure to treat people fairly. He argues that for too many people hard work is no longer enough to keep them off the breadline. While economic statistics place the UK as the sixth richest economy Verkaik believes too few reap the benefit. Producer: Katy Hickman

Francis Bacon is one of Britain’s greatest twentieth century artists – a painter who captured and exposed the darker, stranger sides of life. He is the subject of a new biography, Revelations, by Annalyn Swan and Mark Stevens. Swan tells Andrew Marr how Bacon often fashioned his own autobiography, revelling in story-telling while immersed in the Soho nightlife.Francis Bacon never hid his homosexuality, even at a time when it was illegal in Britain. The celebrated script writer Russell T Davies is well-known for his depiction of the gay scene in Manchester with his 1990s series, Queer as Folk. He now turns his attention to what happened in the decades of the HIV/ AIDs crisis in the Channel 4 series, It’s A Sin.The composer Mark-Anthony Turnage took inspiration from a Francis Bacon’s triptych in his work Three Screaming Popes, combining expressionist complexity with English lyricism. 2020 was planned as a celebratory year for Turnage’s 60th birthday with several premieres scheduled. All were cancelled due to Covid-19. The composer discusses these works and what is inspiring him in the new year.Producer: Katy Hickman Photograph: ‘Self-Portrait, 1975’ © The Estate of Francis Bacon. All rights reserved. DACS 2021

The Acts of Union 1707 brought together England and Scotland, ‘United into One Kingdom by the Name of Great Britain’. But the historian Karin Bowie tells Andrew Marr that in the years preceding a growing number of pamphlets and demonstrations showed that many people were divided on the issue. In ‘Public Opinion in Early Modern Scotland c.1560–1707’ Bowie charts the growing debate across society. The failure of Scotland’s trading ambitions in the Darien Scheme also hit the country hard, both financially and emotionally.However the idea of an independent Scotland emerged surprisingly recently into public debate, according to academic Ben Jackson. In his book The Case for Scottish Independence he argues that an influential Scottish nationalism only began to take shape from the 1970s onwards. It was at heart a political project, born out of opposition to the Thatcher government. Ruth Wishart is a pro-independence journalist who has written about Scottish affairs for many decades. As s columnist for The National she is following every twist and turn as Scottish nationalists agitate for a second independence referendum to follow the Scottish Parliament election in May. The political scientist Ailsa Henderson will be watching the coming elections closely too as she’s an expert on voting behaviour and attitudes to both Scottish and English nationalism. A number of Scots felt a deep sense of grievance against their neighbours at the formation of the Union. Now more than three hundred years later Henderson shows, in her forthcoming book Englishness – co-written with Richard Wyn Jones – that English nationalism contains a strain of grievance about England’s place within the United Kingdom.Producer: Katy Hickman

2020 has been disastrous for the arts in Britain and many people have lost their jobs as Covid-19 has swept through the country. Sir Nicholas Hytner has been working in the theatre for nearly four decades and he tells Andrew Marr about the unprecedented challenges that now face his industry. Hytner made his name and fortune in the 1990s with the musical Miss Saigon. Further successes came with theatre and film productions of The Madness of King George and The History Boys, and the sell-out One Man, Two Guvnors.He ran the National Theatre for twelve years before setting up his own commercial venture – with his business partner Nick Starr – the Bridge Theatre. During the year of the pandemic Hytner has sought to keep the theatre afloat with performances of Alan Bennett’s Talking Heads, and a specially adapted, socially distanced, but joyful, version of A Christmas Carol.Producer: Katy Hickman Photographer: Helen Maybanks

As the 850th anniversary of the murder of Thomas Becket approaches Andrew Marr explores the dynamic between church and state and what happens when the most powerful political friendships turn sour. The academic Laura Ashe explains the background to the murder in the cathedral on 29th December 1170. King Henry II had promoted the lowly born Thomas Becket to the highest positions in the land – first Lord Chancellor, then Archbishop of Canterbury. But their growing animosity and conflict over the rights and privileges of the church led to his infamous assassination by four of the King’s knights. In recent years the former librarian Christopher de Hamel has succeeded in identifying the Anglo-Saxon Psalter which Becket cherished in his lifetime and may even have been holding when he died. In The Book in the Cathedral: The Last Relic of Thomas Becket, de Hamel looks at what this book reveals about the life of Becket. He also compares the veneration for relics of the saints in the Middle Ages, with our relationship today with historical artefacts.In Britain the Anglican Church still has an establishment role within the state, with Bishops in the House of Lords and the monarch regarded as ‘defender of the faith’. But across the Channel in France a formal separation of church and state, laïcité, was enshrined in French law in 1905. The cultural historian Andrew Hussey, who is based in Paris, looks at the devastating fault lines that have emerged in 2020 in the country’s secularist ideals. Producer: Katy Hickman