The first unmistakable signal from another intelligence may not be a cheerful greeting. A growing group of researchers is arguing that our inaugural contact is more likely to be a distress call, the ...

Humans have been searching for signs of alien life for many years. From signals from space to potential sightings of unidentified flying objects (UFOs) in the sky, mankind’s curiosity has sought to ...

A mysterious radio signal detected nearly five decades ago and long speculated to be evidence of extraterrestrial life may finally have a natural explanation, according to new research. The so-called ...