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

An alien invasion might sound like science fiction, but a scientist has now revealed what the terrifying consequences of an encounter might be. Professor Avi Loeb, head of Harvard University's Galileo ...

With over decades of films and convincing radio plays, aliens have captivated our imaginations and our worst fears. They’ve come in all shapes and sizes, looking either cute and cuddly or absolutely ...

Pulverised technology from collapsed alien civilisations may lie scattered across the solar system, including on the Moon, a new study suggests. The likelihood of advanced aliens living at the same ...

You might think this column is about UFOs and the Pentagon's recent declassified files. It's not. We're talking about technosignatures, the evidence of alien technology: a radio or laser signal, ...

For the believers and nonbelievers, the Pentagon answered whether UFOs or aliens have ever visited Earth, saying there is no evidence. Pentagon press secretary Maj. Gen. Pat Ryder fielded several ...