World-first crystal tunes laser light to power ultra-precise, compact nuclear clocks which could guide submarines and ...

A pair of studies from Argonne National Laboratory, published in recent months, have given physicists two new ways to peer ...

NASA will stream video of the spacecraft’s return to Earth starting at 6:30 p.m. Friday. You can watch it on NASA’s YouTube ...

Humans and most other organisms have internal biological clocks that track the daily cycle of sunrise and sunset. These ...

Physicists have shown how time can effectively be reversed for some quantum systems, which would allow for new ways to ...

With global nuclear tensions rising, NHK gained rare access to Minot Air Force Base in the US state of North Dakota, where ...

The Lib Dems’ Sue Miller has spent most of her life trying to reduce the risk of nuclear war. And it’s not going well. Why are so few people talking about non-proliferation, let alone disarmament?

Iran on Monday rejected the ceasefire proposal from the mediators, who have called for a 45-day ceasefire. The proposal came ...

Scientists have built an ultra-precise ytterbium atomic clock that could expose cracks in the Standard Model and detect dark ...

A month after the U.S. and Israel launched airstrikes on Iran, President Donald Trump addressed the nation in a prime-time ...

For the first time, an international team of physicists has successfully harnessed a rare orbital transition in atoms of ...

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 ...