Atomic scientists of Tuesday reset the symbolic 'Doomsday Clock' at 90 seconds to midnight, the theoretical point of annihilation, for the second consecutive year. The members of the Bulletin of the ...

The Doomsday clock was set at 89 seconds to midnight on Tuesday morning, putting it the closest the world has ever been to what scientists deem "global catastrophe." The decades-old international ...

A new atomic clock is one of the world’s best timekeepers, researchers say — and after years of development, the “fountain”-style clock is now in use helping keep official U.S. time. Known as NIST-F4, ...

Physicists have demonstrated all the ingredients of a nuclear clock — a device that keeps time by measuring tiny energy shifts inside an atomic nucleus. Such clocks could lead to vast improvements in ...

Sign up for CNN’s Life, But Greener newsletter. Our limited newsletter series guides you on how to minimize your personal role in the climate crisis — and reduce ...

WASHINGTON, Jan 23 (Reuters) - Atomic scientists on Tuesday kept their "Doomsday Clock" set as close to midnight as ever before, citing Russia's actions on nuclear weapons amid its invasion of Ukraine ...