WASHINGTON — Atomic scientists set their "Doomsday Clock" on Tuesday closer than ever to midnight, citing aggressive behavior by nuclear powers Russia, China and the United States, fraying nuclear ...

Add Yahoo as a preferred source to see more of our stories on Google. At the dawn of the nuclear age, scientists created the Doomsday Clock as a symbolic representation of how close humanity is to ...

Since 1947 -- after the end of World War II and at the beginning of the Cold War -- the Science and Security Board of the Bulletin of Atomic Scientists have kept what they call a "Doomsday Clock." ...

Scientists have decoded the atomic-level secrets behind catalysts that turn propane into propylene. Their algorithms reveal unexpected oxide behavior that stabilizes the catalytic reaction by ...

We sometimes think of the great discovery of the 20th century as the splitting of the atom—and of course this month the Bulletin of the Atomic Scientists is marking 80 years of dealing with the ...

Scientists who track global threats to humanity have pushed the symbolic Doomsday Clock closer to catastrophe than at any point since it was created. The Bulletin of the Atomic Scientists announced on ...