It starts with a signal. Faint, strange, and unlike anything humanity has ever recorded. Within hours, it escalates into an ...

Searching for alien signals sounds like a question of which star to aim a telescope at. It’s also a question of when to listen, because a civilization sending a focused radio beam toward Earth might ...

Astronomers hunting for aliens find new way to work out when they would contact us - Work uses game theory to try and ...

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 ...