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

Imagine a distant world, light-years away, where intelligent beings scan the cosmos, searching for hints of life. If their technology mirrors our own, could they detect Earth? And if so, what signals ...

Alien life may not need the kind of home humans instinctively search for. Some of the strangest possibilities begin once ...

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, ...

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 ...