BERLIN (Reuters) - U.S. President Barack Obama used a speech in Berlin on Wednesday to call on Russia to revive the push for a world without nuclear arms by agreeing to target further reductions of up to one third of deployed nuclear weapons.
BERLIN (Reuters) - President Barack Obama defended U.S. anti-terrorism tactics on a visit to Berlin on Wednesday, telling wary Germans Washington was not spying on the emails of ordinary citizens and promising to step up efforts to close the Guantanamo Bay prison.
KABUL (Reuters) - Afghan President Hamid Karzai said on Wednesday his government would not join U.S. peace talks with the Taliban until they were led by Afghans and would suspend negotiations with the United States on a troop pact.
A week of demonstrations in Brazilian cities over rising bus fares and other issues continued into daylight hours Wednesday, with protesters succeeding in blocking three main highways leading into São Paulo.
Nick Cave doesn't create art just so you can stare at it. The Chicago-based artist's work is meant to be explored, experienced and, in some cases, even worn. In Sojourn, the newly opened exhibition at the Denver Art Museum, Cave has created a weird and wonderful fantasyland filled with sculptures built from flea market objects, button-adorned walls […]
After years of benefiting from the bug bounty programs of other companies, Microsoft is finally stepping into the bug bounty business itself by offering three new programs to encourage and compensate researchers who find vulnerabilities in the company's software.
Using clouds of ultra-cold atoms and a pair of lasers operating at optical wavelengths, researchers have reached a quantum network milestone: entangling light with an optical atomic coherence composed of interacting atoms in two different states.
Differences between Martian meteorites and rocks examined by a NASA rover can be explained if Mars had an oxygen-rich atmosphere 4,000 million years ago -- well before the rise of atmospheric oxygen on Earth 2,500 million years ago.