Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...

Are we alone in the Universe? With more than 100 billion galaxies in the observable universe and at least 500 billion planets ...

UFO reports keep returning for reasons that are more complicated than they first appear. A small number of cases continue to ...

People were allegedly advised to call the United Nations' "alien communications specialist" if they made contact with extraterrestrial life.

Former Pentagon UFO investigator Jay Stratton says an unidentified insider described living non-human beings allegedly ...

An alien radio signal from K2-155 d? Are there any alien civilizations out there? For several decades, scientists have been searching for evidence that they exist. That effort is collectively known as ...

When you're looking for signs of extraterrestrial intelligence, it helps to know what you're looking for and to go about it in the most efficient way. But work so far has generally not done so, writes ...

A new study proposes searching the moon for remnants of ancient extraterrestrial technology. Researchers suggest the moon's surface could preserve microscopic "technosignatures" left by alien ...

Cue the curiosity surrounding extraterrestrial life. The U.S. Department of Homeland Security has registered two new federal domains, including Alien.gov and Aliens.gov, though the websites aren't ...

UFO researcher and Harvard professor Avi Loeb reportedly addressed the viral claim about aliens revealing themselves in 16 days and clarified that he never gave such a statement. According to News ...

Long before Artemis II captured our attention by taking humans farther from Earth than ever before, humans have been fascinated by the possibility of exploring other worlds, finding life on other ...