Alan Higbie signed up for the Army to avoid the infantry; he ended up talking to a revolution. It all started with a crystal ...

Numbers stations are mysterious, unsettling, and one of the strangest things you'll ever hear. They're shortwave radio stations that send coded messages to undercover spies all over the world—an odd ...

The output of a mysterious radio station in Russia, which has been broadcasting the same monotonous signal almost continuously for 20 years, has suddenly changed. Numbers stations are shortwave radio ...

“Calling all. This is our last cry before our eternal silence.” With that, in January 1997, the French coast guard transmitted its final message in Morse code. Ships in distress had radioed out dits ...

In the second week of December, a Cold War–era Russian shortwave radio station broke from its usual pattern. Over the course of several days, UVB-76, better known as “The Buzzer,” transmitted an ...