Cormac O Raifeartaigh

We have one universe, but at present different determinations of its rate of expansion, which simply do not agree. This constitutes a puzzle, the reso(...)

This week, one of the most famous experiments of 20th century science will be celebrated at an international conference in Paris. On May 29th, 1919, t(...)

“When were atoms first discovered?” I was recently asked. The question often comes up at this time of year, as our students embark on their first cour(...)

“Science is always political,” asserted a young delegate at an international conference on the history of physics earlier this month. It was a very en(...)

The recent visit of Pope Francis to Ireland, following so soon after the discovery of yet more horrific crimes committed by Catholic clergy against ch(...)

While many academics in Ireland and the UK were snowbound at home earlier this month, an intriguing controversy was breaking in the world of physics. (...)

An important international meeting about climate change took place in Bonn, Germany earlier this month. Attended by more than 10,000 delegates, it rec(...)

Last week’s solar eclipse generated unprecedented public interest in the skies above us. One reason was that the path of the eclipse fell across a lar(...)

Early in June, Donald Trump formally withdrew the United States from the Paris Accord, a key international agreement that aims to limit global warming(...)

Earlier this month, I attended a meeting at the Royal Astronomical Society in London in memory of the celebrated British astrophysicist Fred Hoyle.(...)