Using Einstein’s theory of general relativity, physicists found that clocks on the Moon would run 56 microseconds faster than ...

This is why atomic clocks were one of the enabling technologies for GPS. In turn, atomic clocks on GNSS satellites became the most convenient way to calibrate and synchronize local clocks on the ...

The most precise clocks in the world will lose only one second every 300 billion years—and someday they might fit in your ...

Chinese scientists have advanced in developing a high-power microwave weapon system that uses multiple transmitting vehicles ...

That region of the Earth’s atmosphere called the ionosphere can contain varying levels of free electrons that, when highly ...

The needed precision is much greater than the atomic clocks used for GPS satellites. However, Chinese scientists believe they ...

Chinese scientists say they have built a new type of satellite-destroying weapon that converges multiple high-powered ...

From the humble wristwatch to the atomic clock, innovations that came out of global conflicts transformed our relationship ...

The Pentagon's first batch of new and more capable GPS satellites is as much as eight to 11 months behind the desired ...

The U.S. Air Force began deploying the Global Positioning System (GPS) nearly 50 years ago, critical infrastructure to both ...

This method, called GPS spoofing, tries to deceive a GPS receiver by transmitting fake signals that appear legitimate but ...

Users in Ukraine have begun to experience more frequent automatic time changes on their smartphones due to the activation of electronic warfare systems during air raid alarms.