Optimism about potential breakthrough in decade-long dispute raised
Iranian President says his country 'will not bow its head to threats', though William Hague says deal possible in coming weeks.
A meeting of some of the world's most powerful politicians was still ongoing this afternoon, as Iran resisted calls to scale back its nuclear programme.
John Kerry says ‘the window is open,’ as hopes rise of a constructive dialogue with country’s officials
Letter to international atomic watchdog warns of fallout if missiles hit Damascus reactor, amid fears nuclear materials could fall into the hands of terrorists
Appointment is viewed as a key opportunity to build bridges with Obama administration
He was moved from hospital in London back to the Netherlands last month, but had since suffered complications
Hassan Rouhani has given his first news conference since being declared as Iran’s new President-elect, vowing to continue to enrich uranium and so putting him on a collision course with Western powers.
Cave paintings dated as 15 milliennia older than originally thought, making them Europe's earliest known paintings
Tehran says death of expert is part of a covert war being waged by Israel, the US and Britain
An Iranian nuclear scientist was killed by a bomb in his car in what appears to be the latest covert assassination to hinder the country's nuclear programme.
Computing billionaire Bill Gates has confirmed he is discussing developing a new and safer kind of nuclear reactor with China.
Since Japan's Fukushima nuclear plant began leaking radiation after last month's earthquake and tsunami, those watching with consternation have included the Mirarr Aboriginal people of Australia's Northern Territory, who are determined to limit uranium mining on their land despite the promise of vast riches.
One month after the Japanese tsunami, the world's biggest reserve of plutonium waste is reaching crisis point. It was meant to be reprocessed and sold – but now no nation will take it. So where is this vast stockpile? Not Fukushima, but Sellafield, Cumbria
British taxpayers should spend up to £3bn on a new facility for reprocessing nuclear waste at Sellafield, despite the site in Cumbria already having a similar plant which has cost nearly £2bn and is labelled one of the biggest industrial failures in British history.
Pessimism plagued the first talks for more than a year between Iran and seven world powers on the West's concern that Tehran is developing nuclear weapons.