In 2023, the clock moved to 90 seconds to midnight after Russian President Vladimir Putin invaded Ukraine and broke the ...
The 2026 FIFA World Cup is less than a year away — and, if you want a more precise countdown, you can find it at Houston's George Bush Intercontinental Airport. A clock counting down the seconds to ...
Physicists are quietly rewriting one of the most basic units in science, using a new generation of optical clocks that can keep time so precisely they barely lose a beat over the age of the universe.
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