Beijing’s offensive against rights lawyers began on July 9th with the detention of Wang Yu, an attorney known for defending politically sensitive clients including five Chinese feminists detained earlier this year. Photograph: Kim Kyung-Hoon/Reuters

Nearly two weeks after Beijing launched one of its most comprehensive crackdowns on civil society in decades, at least six people remain missing – bel(...)

Optical fibre: researchers at San Diego received data after it voyaged 12,000km through cables with standard amplifiers and no electronic regenerators.

Over two billion kilometres of optical fibres have been installed worldwide, a string of glass that could be wrapped around the globe 50,000 times. I(...)

 Donald Trump  as he announces his candidacy for the US presidency:  his comments about Mexicans   have made him stand out in a crowded field of Republican candidates. Photograph:  Christopher Gregory/Getty Images

It’s hard to say what’s more shocking: the outrageous remarks property magnate Donald Trump has made since he announced his presidential candidacy or (...)

The data showed the total number of calls made by individuals who had recently lost their jobs dropped by 51 per cent following their layoffs

US data researchers have shown how mobile-phone data can be used to “quickly and accurately detect, track and predict changes in the economy at mul(...)

Young women  hold candles during a vigil at the  Martin Luther King Jr Civic Center Park to mourn the loss of six Irish students who died in an early Tuesday morning in the Berkeley balcony collapse. Photograph: Getty 1:07

Several hundred people, most Irish J-1 students in the San Francisco Bay Area, attended a night vigil to the six Irish people killed when a balcony co(...)

 One of the many messages left near the scene of a fourth-floor balcony collapse in Berkeley on  June 16th which killed  six Irish students and seriously injured seven others. 1:25

Two of the seven Irish students injured in the Berkeley balcony collapse, which killed six of their friends, remain in a critical condition in Highlan(...)

Philip Grant, Consul General of Ireland to the Western United States (L) helps Neil Sands, President of the Irish Network Bay Area, lay an Irish flag atop two wreaths at the scene of a 4th-story apartment building balcony collapse in Berkeley, California, on Tuesday. Photograph: Elijah Nouvelage/Reuters 0:58

The memorial grew in size as last night wore on. Some mementos left at the scene clearly had a personal significance to the six Irish students killed (...)

The scene of a balcony collapse at Library Gardens Apartments in downtown Berkeley, California where at least six Irish students were killed. Photograph: AP 1:25

One Irish man reported hearing screams at about 12.41 am local time yesterday, the moment that the balcony collapsed from the fourth floor of a buildi(...)

A file image of students on the   University of California, Berkeley, campus in San Francisco, California. Photograph: Getty

Over 8,000 Irish students go to the US each summer on J-1 visas, predominantly after their first year in college year or in advance of their final yea(...)

 Friends of the victims stand outside as they survey the scene in Berkeley.  Photograph: EPA/Peter Dasilva 1:25

Six Irish students have been killed in Berkeley, California, when a fourth-floor balcony collapsed. Niccolai Schuster (21), Eoghan Culligan (21), Eime(...)