Seventy-eight years ago, scientists created a unique sort of timepiece — named the Doomsday Clock — as a symbolic attempt to gauge how close humanity is to destroying the world. On Tuesday ...

(NEXSTAR) – The Doomsday Clock, a concept designed by the Bulletin of the Atomic Scientists to represent humanity’s proximity to a global catastrophe, moved slightly closer to “midnight” on Tuesday.

The ion trap of the new In+/Yb+-crystal clock in its vacuum chamber. The Ions are trapped in the gap that can be seen in the middle of the picture between the gold electrodes (target). A shown-up ...

These optical clocks are still in the testing phase, but some of them are already a hundred times more accurate. This is why they are to become the basis for the global definition of seconds in the ...

As these clocks continue to improve, they will soon define the worldwide standard for the second in the International System of Units (SI). However, before that happens, they must prove their ...

Ukraine is working on a homegrown air defense system to rival the US-made Patriot, according to the commander in chief of its army. The decision was spurred by the development of Russia's new ...