Astronomer Dr David Charbonneau, from the Harvard-Smithsonian Center for Astrophysics in the US, said: “Our ultimate goal is to find a twin Earth, but along the way we’ve found a twin Venus.” File photograph: Twitter

A Venus-like rocky planet 39 light years from Earth could provide astronomers with an early opportunity to study the atmosphere of a world outside our(...)

Ahmed Chalabi, the Iraqi politician who from exile helped persuade the United States to invade Iraq in 2003. Photograph: the New York Times

Ahmed Chalabi, chief proponent of US-enforced regime change in Iraq, died yesterday at the age of 71 in Baghdad, where he headed the Shia fundamentali(...)

UCD has dropped from 139 to 154 in the QS World University Rankings 2015/16

The latest international university rankings show another dip in standings for Irish third-level institutions. Trinity College Dublin is down f(...)

In a data set recording more than one million users’ credit card transactions for three months, researchers were able to identify 91 per cent of people’s identities. Photograph: REUTERS/Kacper Pempel/Files

In case you weren’t paranoid enough, this one will help: research conducted at the Massachusetts Institute of Technology (MIT) has shown that just fou(...)

Dzhokhar Tsarnaev (21) was found guilty of killing three people and injuring 264 in the April 15th, 2013, bombing on the Boston Marathon, as well as fatally shooting a police officer three days later. Photograph: EPA/FBI

Boston Marathon bomber Dzhokhar Tsarnaev apologised at a Wednesday hearing to formally sentence him to death for the 2013 attack. “I am sorry for the (...)

Even the examiners themselves show unnecessary sloppiness with units; question 2(b)(ii) on the maths ordinary paper 1, about the volume of the earth, fails to mention the unit of volume. Photograph:Planet Observer/Universal Images Group via Getty Images.

Leaving Cert maths paper 1 is over. The higher level paper is by far the easiest on record. Strip away the applications and what’s left is on a par wi(...)

Ross O’Neill of Neuromod Devices with a Mutebutton

For some it’s a high-pitched drone, for others a whooshing, hissing or buzzing. The layman’s name for it is “ringing in your ears”. The medical term i(...)

John Nash: he thought mathematicians were comparatively sane, at least compared with logicians.

The American mathematician John Nash, who has died aged 86 in a car crash along with his wife, made his public mark as the subject of the 2001 film A (...)

Dried up: the UN Global Pulse unit monitors social network messages from Twitter and elsewhere for early-warning signals of a disease outbreak, crop failure or economic turmoil in a region of a developing country. Photograph: Reuters

The timing and technology are right to bring the power of digital sensing to the poor to improve health, safety and education.That is the driving assu(...)

A driverless car during a press event this month in Zurich, Switzerland. Photograph: EPA/Ennio Leanza

Many years ago – it must have been the late 1990s – I ran into a freelance Irish Times colleague in the office. He had just returned from Cannes, wher(...)