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

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 ...

Rebecca Charbonneau is a historian at the American Institute of Physics, College Park, Maryland, and the author of Mixed Signals: Alien Communication Across the Iron Curtain. As the electronic signals ...

It starts with a signal. Faint, strange, and unlike anything humanity has ever recorded. Within hours, it escalates into an event that changes the course of history as an alien arrival on Earth ...