After weeks of warning that the US could take military action against Iran unless it agrees to a deal to curb its nuclear program, President Donald Trump has followed through on his threat. On Feb. 28 ...

AURORA, Colorado—Lockheed Martin and the U.S. Space Force are testing several new technologies aboard the next GPS III satellite, including a new digital atomic clock. Current GPS satellites carry a ...

In the realm of first-world problems, your cheap wall clock doesn’t keep time, so you have to keep setting it. The answer? Of course, you connect it to NTP and synchronize the clock with an atomic ...

LAS VEGAS (KTNV) — An industry once booming across the Silver State is now leading to several health defects for locals. While many are now dealing with ailments from nuclear test sites, a ...

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President Donald Trump said Friday that the United States has directly communicated expectations to Iran as pressure mounts for Tehran to accept a nuclear deal, even as Iranian officials publicly ...

Time is almost up on the way we track each second of the day, with optical atomic clocks set to redefine the way the world measures one second in the near future. Researchers from Adelaide University ...

The Bulletin of Atomic Scientists has set the Doomsday Clock to 85 seconds to midnight. It is the closest the clock has ever been to midnight in its history. The Bulletin of Atomic Scientists said ...

Iran has faced suspicion for decades over its nuclear ambitions and whether it’s developing the capability to fire an atomic weapon. It agreed to cap its nuclear activities in exchange for sanctions ...

The "Doomsday Clock" was set to 85 seconds to midnight on Jan. 27 — marking the closest it has been to the time that represents apocalypse in its history. “The Doomsday Clock’s message cannot be ...

Atomic scientists set their "Doomsday Clock" on Tuesday closer than ever to midnight, citing aggressive behavior by nuclear powers Russia, China and the United States, fraying nuclear arms control, ...

Nuclear effect The deformed shape of the ytterbium-173 nucleus (right) makes it possible to excite the clock transition with a relatively low-power laser. The same transition is forbidden (left) if ...