Morse code transmits information through sequences of dots, dashes, and spaces, allowing messages to travel long distances ...

What does it take to detect a radio signal sent by extraterrestrial life to Earth? Two decades of work involving radio ...

The recent spate of unidentified drone sightings in the U.S., including some near sensitive locations such as airports and military installations, has caused significant public concern. Some of this ...

Add Yahoo as a preferred source to see more of our stories on Google. Illustration: MH370 plane on blue background with radio signals being emitted around itt Transmissions from amateur radio ...

This is an archived article and the information in the article may be outdated. Please look at the time stamp on the story to see when it was last updated. Some of this recent increase in activity may ...