(((:))) Radio explorers, have you seen or heard something unusual?
Radio: drag the dial across frequencies at any given time, any given place and you will hear a cacophony of sounds.
Static, pops and crackles, whistles, the tap, tap tap of the universe going about its electromagnetic business. In between those sounds are stations: broadcasts that are music, news, chatter, cryptic messages and espionage. Stretching out around the world in a network of terrestrial communication, bouncing off the heaviside and landing back again to be collected by radio-listeners.