The first unmistakable signal from another intelligence would rank alongside fire and writing in the story of our species, ...

Pop culture is full of references to messages from outer space. Some of them were friendly attempts at communication, such as the five-note musical sequence transmitted to Earth by aliens in Close ...

Science fiction has long speculated about the possibility of first contact with an alien species from a distant world and how we might be able to communicate with them. But what if we simply don’t ...