SETI's 1977 "Wow!" signal from deep space was even stronger than originally thought, but its source remains a complete ...

Due to its large dynamic range, the decibel is a useful unit of measure and is used in various applications, mainly in the ...

The app, which was introduced in 2014 and has hundreds of millions of users, is widely viewed as the safest messaging tool because of its encryption technology. By Kate Conger Reporting from San ...