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

Is intelligent alien life really out there? With powerful telescopes identifying more potentially habitable planets each year ...

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 ...

Some scientists believe the sheer number of stars, planets and potentially habitable environments in space makes ...

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, ...

If ancient alien explorers ever traipsed through Earth's cosmic neighborhood, could it be possible they left behind some ...

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 ...