Chinese scientists create clock so precise it could redefine second - Optical clock measures time using light emitted by ...

The hands of the "Doomsday Clock" have officially been reset to 85 seconds to midnight, the closest to catastrophe humanity has ever been before. The Bulletin of the Atomic Scientists' Science and ...

Chinese scientists have created an optical clock that may lead to development of space-based versions that are smaller, ...

Earth is closer than it’s ever been to destruction as Russia, China, the U.S. and other countries become “increasingly aggressive, adversarial, and nationalistic,” a science-oriented advocacy group ...