The new Doomsday Clock time has been set by the Bulletin of the Atomic Scientists. Here’s what it means.

Nuclear weapons, climate change and biological threats are the biggest concerns.

Scientists cited artificial intelligence and how it’s used to supercharge disinformation as a new risk.

By Will Dunham WASHINGTON, Jan 27 (Reuters) - Atomic scientists set their "Doomsday Clock" on Tuesday closer than ever to ...

The "Doomsday Clock" is a metaphor for how close humanity is to self-annihilation.

The clock is a symbolic way to show the public how close scientists believe the world is to a human-made apocalypse.

USA TODAY asked Alexandra Bell, the president and CEO of the Bulletin of the Atomic Scientists, a few questions about the ...

The “Doomsday Clock” on Tuesday moved to 85 seconds till midnight, bringing the world closer than ever to destruction on the ...

From a design perspective, the Doomsday Clock is remarkably economical. Four dots. Two hands. The universal language of ...

This has now paved the way for a multi-ion optical ytterbium clock that combines the high accuracy of single-ion clocks with ...

For many years, cesium atomic clocks have been reliably keeping time around the world. But the future belongs to even more accurate clocks: optical atomic clocks. In a few years' time, they could ...

Smaller version Illustration of a conventional atomic fountain clock (left) next to NPL’s miniature atomic fountain clock.