A new line of research proposes that the first clear signs of extraterrestrial intelligence may not come from distant stars, ...

The Pentagon on Friday released a third batch of vintage classified files related to “flying saucers” and other unidentified ...

Astrophysicist Neil deGrasse Tyson has a blunt request for the government as the Pentagon rolls out the highly anticipated ...

There's no conclusive evidence of alien life or government cover-ups. But the files released Friday by the Pentagon reveal ...

For generations, the search for life beyond Earth has focused on avoiding one of science’s biggest mistakes: claiming a ...

With that, exobiologists avoided one of the things they fear the most: the false positive—seeing the existence of life where ...

Between the mid-1970s and early 1980s, two physicists, Michael Hart and Frank Tipler, published a controversial series of papers arguing that extraterrestrial intelligence didn't exist. As they argued ...

If and when SETI discovers alien life, a revised Declaration of Principles guarantees once the discovery has been verified, ...

The object, called 3I/ATLAS, is only the third interstellar visitor ever detected passing through our Solar System.