More accurate strontium-based atomic clocks are possible – and accurate to one second every 40 billion years – by emitting radiation in the visible, rather than microwave, spectrum.

A new atomic clock is one of the world’s best timekeepers, researchers say — and after years of development, the “fountain”-style clock is now in use helping keep official U.S. time. Known ...

For more about Holly's Optical Atomic Strontium Ion Clock, check out the OASIC project on NASA's website.- For more about the Longitude Problem, check out Dava Sobel's book, Longitude.

Atomic clocks are already in use in space, and we are reliant on the technology in our day to day lives. GPS satellites, for example, use atomic clocks to measure location extremely precisely.

Best value, best overall. Compact clock has a snug case that converts into a stand. Buttons are hard to press, but there are only four of them (not including snooze). Takes one lithium-cell ...

Atomic scientists moved their "Doomsday Clock" closer to midnight than ever before, citing Russian nuclear threats amid its invasion of Ukraine and other factors underlying the risks of global ...

WASHINGTON — Atomic scientists on Tuesday kept their “Doomsday Clock” set as close to midnight as ever before, citing Russia’s actions on nuclear weapons amid its invasion of Ukraine ...

The Bulletin of the Atomic Scientists set the Doomsday Clock to 89 seconds to midnight, one second more than the last two years, attributed to threats posed by climate change and artificial ...

The laser light used in a nuclear clock is also much higher in frequency than that required for atomic clocks. This leads to more 'ticks' per second and therefore more precise timekeeping.

Atomic scientists on Tuesday kept their "Doomsday Clock" set as close to midnight as ever before, citing Russia's actions on nuclear weapons amid its invasion of Ukraine, nuclear-armed Israel's ...