A set of protocols telling scientists what to do – and what not to do – if they ever detect evidence of intelligent life ...

Research indicates airport radar systems may unintentionally broadcast Earth's presence to aliens up to 200 lightyears away, ...

The long-running series in which readers answer other readers’ questions comes up with an epic extraterrestrial playlist for Earth’s first contact from beyond the stars ...

The moment of first contact with extraterrestrials is a staple of science fiction. It usually involves a frantic scientist having a Eureka moment, realising in a single dramatic instant that Earth is ...

A NASA‑linked study argues that alien probes could already be in our Solar System, but our surveys are still too crude to rule them out. From misidentified rocket boosters to blurry moon maps, it ...

Even with the James Webb Space Telescope (JWST)—one of the most advanced astronomical instruments ever built—we still don’t ...

ON AN August evening in 1995 there was a worldwide broadcast of an 18 minute, grainy black and white film that caused a sensation. According to the report it had been kept secret by the US ...

The United States government’s recent release of hundreds of previously classified Unidentified Anomalous Phenomena (UAPs) cases spanning the 1940s to the present, along with the new Steven Spielberg ...

Scientists propose a simple but powerful new method for detecting traces of alien biology, whether on Jupiter's icy moons, in ...