News Edward Snowden speaking during his dinner with a group of four retired US ex-intelligence workers and activists at a luxurious room in an unidentified location.

Former government contractor could join President Obama, Henry Kissinger and Nelson Mandela in historic list

James Hunt in his prime in 1976

James Lawton: The James Hunt I knew is the subject of a new F1 movie

British driver was fascinating man whose epic duel with Niki Lauda in 1976 was typical of an era of glamour and glory – but also the ever-present threat of death

Here and Now: Letters 2008-2011, By Paul Auster & JM Coetzee

Two of our greatest living writers swap views on life, death and the tyranny of the mobile phone

Desmond Tutu has said he will no longer vote for the ruling African National Congress

Desmond Tutu’s editorial denounces the ANC

Archbishop Emeritus Desmond Tutu, lifelong friend of former South African president Nelson Mandela and the man regarded by many as the nation’s voice of conscience, has said he will no longer vote for the ruling African National Congress (ANC).

'The stuff of Nobel prizes': Half a million sufferers of back pain 'could be cured with antibiotics'

Up to half a million patients with chronic low back pain may be suffering from an infection that can be treated with antibiotics.

The Weekend's Viewing: In Russell Lewis, Endeavour has a writer who knows when to stop

Endeavour, Sun, ITV1 // The Genius of Marie Curie – the Woman Who Lit Up the World, Fri, BBC2

The Sir Winston Churchill banknote concept, which is set to oust the current five pound note with social reformer Elizabeth Fry as the face of the Banks of England's five pound notes

With Churchill set fair for the five pound note, what price equality? Show me the money women

Chancellor’s aide joins new campaign demanding that British women be recognised on banknotes

Sir Winston Churchill will appear on £5 notes from 2016

Sir Winston Churchill to replace Elizabeth Fry on the five pound note - leaving the Queen as only woman on a British bank note

War leader will replace penal reformer Elizabeth Fry, leaving the Queen the only woman on a British bank note

Murray and his wife Noreen, with their double portrait; they made a formidable team

Professor Sir Kenneth Murray: Scientist who developed the vaccine against hepatitis B

As chairman of the Court of the University of Edinburgh between 2003 and 2006 I was in a position to know something that Sir Ken Murray – he was Ken, not Kenneth to his vast array of friends in the scientific community worldwide – and his wife, Lady Noreen, did not want generally known: that they had donated over £12m to their university. This fund accrued from the patent rights of Murray's work, which spearheaded the fight against hepatitis. Murray and his Edinburgh team found a way to identify the hepatitis B virus, which seriously damages the liver, and developed a vaccine against it. He was also a co-founder of the biotech company Biogen, which patented the vaccine.

Sir Robert Edwards developed IVF in the 1960s and 1970s

He was like a grandfather to me: first test-tube baby leads tributes to IVF pioneer Sir Robert Edwards

Louise Brown, the world’s first “test tube baby”, led tributes for IVF pioneer Professor Sir Robert Edwards after his death at the age of 87.

Television choices: How to build a better future with Sellotape and science

TV pick of the week: Tomorrow's World: A Horizon Special

Desmond Tutu is this year’s winner of the ‘spiritual Nobel’

Templeton Prize: Desmond Tutu wins a million – so will he follow the Dalai Lama and give it away?

When the Dalai Lama received £1.1m last year from the Templeton Foundation, he did what all good Buddhist monks who have preached against materialism might be expected to do – he gave it away.

The Labour politician won the prize for his work on disarmament

Thieves steal Uncle Arthur’s 1934 Nobel Prize medal

The Nobel Peace Prize medal won by one of the founding fathers of the modern Labour Party, Arthur Henderson, has been stolen in a £150,000 raid at the Lord Mayor’s office in Newcastle.

Health officials carry sacks of culled chickens after bird flu was found at a farm in Agartala, India

Last night's viewing - The Challenger, BBC2; Paul Hollywood's Bread, BBC2

Those of us who can remember the 1986 Challenger disaster – the Nasa shuttle that exploded just 73 seconds after seven smiling astronauts waved to the world and took off for space – will recall the shock and bewilderment that followed this much publicised flight. The doomed moment was caught on television, including the suddenly silenced crowd of well-wishers down below who stared up at the plumes of smoke as the shuttle disintegrated. The astronauts included a school teacher making her first trip to space, and their bodies were recovered from the Atlantic after a protracted search that only extended the sense of national anguish.

Kostya Novoselov has criticised the current emphasis on scientific research needing to be commercial

Dash for cash is stopping science in its tracks, claims Nobel winner

Scientific breakthroughs are becoming more difficult in Britain because of the pressure on scientists to demonstrate that their research has practical benefits before it is funded, Kostya Novoselov told The Independent.

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General Election 2015: Chuka Umunna on the benefits of immigration, humility – and his leader Ed Miliband

Chuka Umunna: A virus of racism runs through Ukip

The shadow business secretary on the benefits of immigration, humility – and his leader Ed Miliband
Yemen crisis: This exotic war will soon become Europe's problem

Yemen's exotic war will soon affect Europe

Terrorism and boatloads of desperate migrants will be the outcome of the Saudi air campaign, says Patrick Cockburn
Marginal Streets project aims to document voters in the run-up to the General Election

Marginal Streets project documents voters

Independent photographers Joseph Fox and Orlando Gili are uploading two portraits of constituents to their website for each day of the campaign
Game of Thrones: Visit the real-life kingdom of Westeros to see where violent history ends and telly tourism begins

The real-life kingdom of Westeros

Is there something a little uncomfortable about Game of Thrones shooting in Northern Ireland?
How to survive a social-media mauling, by the tough women of Twitter

How to survive a Twitter mauling

Mary Beard, Caroline Criado-Perez, Louise Mensch, Bunny La Roche and Courtney Barrasford reveal how to trounce the trolls
Gallipoli centenary: At dawn, the young remember the young who perished in one of the First World War's bloodiest battles

At dawn, the young remember the young

A century ago, soldiers of the Empire – many no more than boys – spilt on to Gallipoli’s beaches. On this 100th Anzac Day, there are personal, poetic tributes to their sacrifice
Dissent is slowly building against the billions spent on presidential campaigns – even among politicians themselves

Follow the money as never before

Dissent is slowly building against the billions spent on presidential campaigns – even among politicians themselves, reports Rupert Cornwell
Samuel West interview: The actor and director on austerity, unionisation, and not mentioning his famous parents

Samuel West interview

The actor and director on austerity, unionisation, and not mentioning his famous parents
General Election 2015: Imagine if the leading political parties were fashion labels

Imagine if the leading political parties were fashion labels

Fashion editor, Alexander Fury, on what the leaders' appearances tell us about them
Phumzile Mlambo-Ngcuka: Home can be the unsafest place for women

Phumzile Mlambo-Ngcuka: Home can be the unsafest place for women

The architect of the HeForShe movement and head of UN Women on the world's failure to combat domestic violence
Public relations as 'art'? Surely not

Confessions of a former PR man

The 'art' of public relations is being celebrated by the V&A museum, triggering some happy memories for DJ Taylor
Bill Granger recipes: Our chef succumbs to his sugar cravings with super-luxurious sweet treats

Bill Granger's luxurious sweet treats

Our chef loves to stop for 30 minutes to catch up on the day's gossip, while nibbling on something sweet
London Marathon 2015: Paula Radcliffe and the mother of all goodbyes

The mother of all goodbyes

Paula Radcliffe's farewell to the London Marathon will be a family affair
Everton vs Manchester United: Steven Naismith demands 'better' if Toffees are to upset the odds against United

Steven Naismith: 'We know we must do better'

The Everton forward explains the reasons behind club's decline this season
Arsenal vs Chelsea: Praise to Arsene Wenger for having the courage of his convictions

Michael Calvin's Last Word

Praise to Wenger for having the courage of his convictions