In recent years, clocks built with new ion and lattice designs have leapfrogged each other for the title of most accurate, but the best of both are now roughly 100 times more accurate than the ...

First set at “seven minutes to midnight,” the metaphorical clock reminds us of the extinction-level peril all around us: the threat of global thermonuclear conflict, now along with climate ...

The symbolic clock is now two-and-a-half minutes from midnight, the closest it's been to midnight since 1953, when the hydrogen bomb was first tested. Scientists blamed a cocktail of threats ...

Now, the Bulletin’s Science and Security Board considers more than just the nuclear threat when deciding where to set the clock’s hands each year. In 2002, scientists moved up the Doomsday ...

(About seven years, the clock’s creators said.) Image The Climate Clock now displays an estimated percentage of the world’s energy being supplied by renewable sources.Credit...Jeenah Moon for ...