When talk turns to SETI, there's one question that's as common as catfish: "We're not broadcasting to the aliens; so what makes you think they'll be broadcasting to us?" This may strike the innocent ...

It’s been a few years since the RTL-SDR TV Tuner dongle blew up the world of amateur radio; it’s a simple device that listens in on digital television frequencies, but it’s one of those tools that’s ...