Deep inside a mountain, a full day’s hike from any road, in a dry, deserted part of West Texas, a foundation funded by Jeff Bezos is building a clock that’s hundreds of feet tall. It’s been called the ...

What if you could build a clock that would last for 10,000 years? A clock that would tick only once a year, bong once a century, and cuckoo once a millennium? A clock that would be a symbol of ...

Inside a laboratory nestled in the foothills of the Rocky Mountains, amid a labyrinth of lenses, mirrors, and other optical machinery bolted to a vibration-resistant table, an apparatus resembling a ...

At the dawn of the nuclear age, scientists created the Doomsday Clock as a symbolic representation of how close humanity is to destroying the world. On Tuesday, nearly eight decades later, the clock ...