Twitter adds Arabic and Hebrew

Twitter on Tuesday launched Arabic, Hebrew, Farsi and Urdu versions of its website, further localizing of the popular one-to-many text messaging service.

Actor Alan Alda sponsors 'fiery' science contest

American actor Alan Alda remembers the disappointment of being 11 and asking a teacher about the flame at the end of a candle, only to be brushed off with the answer: "It's oxidation."

Study advances science of carbon accounting

Determining with precision the carbon balance of North America is complicated, but researchers at Oak Ridge National Laboratory have devised a method that considerably advances the science.

Startups Dropbox and Box reach for the cloud

They are polar opposites, but two of Silicon Valley's hottest start-ups share similar names, market, adversaries and ambitions - perhaps with wishful eyes on going public next year.

Galaxy cluster hidden in plain view

(PhysOrg.com) -- A team of astronomers has discovered the most distant cluster of red galaxies ever observed using FourStar, a new and powerful near-infrared camera on the 6.5m Magellan Baade Telescope. The galaxy cluster ...

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