How Radio Astronomy Helps Us See the Invisible Cosmos," astrophysicist Emma Chapman describes the hidden corners of space that only radio waves can reveal — and makes the case for contacting aliens.

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 ...

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 ...

Scientists setting up ‘post-detection hub’ in Scotland are concerned humans would react ‘like headless chickens’ The moment has been imagined a thousand times. As astronomers comb the cosmos with ...

Spielberg’s hotly anticipated new movie gives fresh impetus to a dilemma that has long captured the imaginations of filmgoers, scientists and the great director himself ...