The Doomsday Clock is a design that warns the public about how close we are to destroying our world with dangerous ...

Eighty years after the first atomic bombs fell on Hiroshima and Nagasaki, experts and survivors warn that the risk of a new ...

But there is another way. Time goes more slowly under higher gravity. One result of this, for example, is that over the 4.5-billion-year age of the Earth, the core is sometimes said to be about 30 ...

Every year, it reminds us how close we are to catastrophe. From nuclear war to climate change, here’s why the Doomsday Clock ...

It was such a peaceful morning that Yoshito Matsushige could scarcely believe it was wartime. Matsushige, a 32-year-old ...

The distance between tough-guy posturing and the start of an actual conflict is too close for comfort. That’s why the ...

As the world marks the 80th anniversary of the first use of a nuclear weapon, on the Japanese city of Hiroshima near the end ...

The universal need to be on time keeps everyone on the move, shaping society into a permanently well-oiled machine. Whether you find yourself glancing at a clock on the wall or checking your phone, ...

Japan marked 80 years since the atomic bombing of Hiroshima on Wednesday with a ceremony reminding the world of the horrors ...

Against the backdrop of rising Russia-US tensions, Japan held a ceremony on Wednesday morning commemorating 80 years since ...

NIST scientists have published results establishing a new atomic clock, NIST-F4, as one of the world’s most accurate timekeepers, priming the clock to be recognized as a primary frequency ...