A holiday commemorating the end of slavery has found new resonance amid antiracism protests

Carmel McMahon, who lives in New York, on the deaths that have appalled protesters

Network could advise government on viruses, climate change and water supply issues

Has the biggest monetary policy experiment of modern times actually worked?

James Peebles, Michel Mayor and Didier Queloz are jointly awarded the 2019 prize

Research shows data sent to third-party advertisers even when some devices are idle

Book review: When Michael O’Sullivan strays into politics he is on very uncertain ground

Jeffrey Sachs also due to take part in Kilkenny gathering of comedy and economics

Net Results: Firm has been an ethics leader in big tech, but has some soul-searching to do

Some 50% more food will be needed by 2050, ‘but greenhouse gas emissions from agriculture will have to fall by two-thirds at the same time’

The benefits of a tidy home are obvious but sometimes cleaning gets out of hand

Some Google apps record location data without ‘asking’ but you can counteract this

Prices could rise greatly if tit-for-tat escalation drives total of affected goods toward $1tn

Singapore ranks as world’s fastest country with average speeds of 60.39mbps

‘I am desperately hard up and owe about £20,’ Yeats wrote in plea to publisher to be paid

Crowd-sourced science moves to new level with the help of artificial intelligence

Bank of Ireland ad touched a nerve for thousands locked out of the housing market

‘It’s one of our most basic instincts; to listen to a song, listen to a poem – even in this era when people have their noses stuck in their tablets, it still works’, says the poet Paul Muldoon

Steve Bannon leaves behind an increasingly lonely president in a chaotic White House

Paul Brody believes the technology will have biggest impact among manufacturers

Obituary: Maryam Mirzakhani; born May 3rd, 1977 – died July 15th, 2017

The Holocaust survivor campaigned for abortion rights and European integration

Denis O’Brien offers advice to Amazon founder on how best to help people ‘right now’

Gracious Irish political theorist says ‘it’s the message that counts, not the messenger’

NUI Galway hears how writer’s work shows how power functions through ‘creation of alternative facts’

A deal could allow free passage across the island with rules on entry and exit

‘Irish Times’ series highlights breathtakingly beautiful objects, says author Fintan O’Toole

The writer, whose new novel, ‘4 3 2 1’, has just been published, says he’s frightened by and angry about Donald Trump and his new White House administration

If the world stops making sense, call the philosopher

Enda Kenny says €48m cost of Easter Rising commemorations was money well spent

Neuroscientists found that thousands of new brain cells grew in mice when they ran

Going visual provides a better way to teach maths says academic James Tanton

Analysis shows women can decide for themselves the best reproductive choice

Students who gave up the seminary 50 years ago recall a suffocating atmosphere that infantilised seminarians, but also some rare acts of kindness and enlightenment

NUI Galway summit is one of the last setpiece events of the centenary commemorations

Bear in mind these tips when you’re next stuck behind a line of stressed shoppers

Even Einstein initially found Lemaître’s ‘big bang’ model of the origins of the universe far-fetched

People research registered disgust rather than fellow-feeling at the image of a destitute person

A liar cares about truth - he must, to conceal it from his audience. The bullshitter is indifferent

In order to enjoy democratic freedom, the people of a republic should share equally in imposing community standards on government