He developed technologies that helped pave the way for the Global Positioning System and made foundational discoveries that ...

The U.S. and Israeli bombing of Iranian nuclear sites creates a conundrum for U.N. inspectors in Iran: how can you tell if ...

How can you tell if enriched uranium stocks, some of them near weapons grade, were buried beneath the rubble or were secretly ...

The MIT professor, a recipient of the National Medal of Science, developed technologies that helped pave the way for the Global Positioning System.

The fractional Allan deviation of their ~235-MHz noise-suppressed RF clock output, measured using the Microsemi phase-noise test set (PNTS), is plotted in Figure 4 (green trace).

That clock, called the Atomic Clock Ensemble in Space, or ACES, launched into orbit from Florida last month, bound for the International Space Station. ACES, which was built by the European Space ...

From space, ACES will link to some of the most accurate clocks on Earth to create a synchronized clock network, which will support its main purpose: to perform tests of fundamental physics. But it ...

According to scientists at NIST in Boulder, their newest atomic clock, the NIST-F4, will help track time more precisely and help put global time on a more accurate frequency.

QEPNT has been set up by the government to shrink the devices on to a chip, making them robust enough for everyday life and affordable for everyone. That process isn't going to happen soon, though.

The Bulletin of the Atomic Scientists set the clock to 89 seconds before midnight — the theoretical point of annihilation. That is one second closer than it was set last year.

The Bulletin of the Atomic Scientists set the clock to 89 seconds before midnight - the theoretical point of annihilation. That is one second closer than it was set last year.