International inspectors have so far visited three sites linked to Syria's chemical weapons program, a spokesman said Thursday, as the team races to destroy the country's stockpile and delivery systems amid a raging civil war. Underscoring the complexity of the mission, a regime warplane...

 Martin Karplus, Michael Levitt and Arieh Warshel won the 2013 Nobel Prize for Chemistry on Wednesday "for the development of multiscale models for complex chemical systems."   The Royal Swedish Academy of Sciences said the scientists' research in the...

The Pentagon is suggesting the world's chemical weapons watchdog use a U.S.-made mobile destruction unit in  Syria  to neutralize the country's toxic stockpile, officials told Reuters. It gave a briefing on the unit on Tuesday to officials at the Hague-based Organization for...

 Syrian air raids on rebel positions in the northern Aleppo and southern Daraa provinces killed 30 people on Thursday, including civilians, a monitoring group said . With the world's attention trained on Syria's chemical weapons, set to be destroyed by...