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 ...

How Radio Astronomy Helps Us See the Invisible Cosmos," astrophysicist Emma Chapman describes the hidden corners of space ...

A well-known conspiracy theory (also seen in The X-Files) attests that aliens are in communication with the U.S. government, ...

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 ...

Former U.S. President Barack Obama said he did not see evidence that aliens “have made contact with us,” after sending social media abuzz by saying aliens were real on a podcast over the weekend.

Is there a reason aliens are ghosting us? Maybe they are bored of trying? That’s the latest theory from scientists who suggest that, contrary to popular belief, aliens are handling equipment similar ...