It starts with a signal. Faint, strange, and unlike anything humanity has ever recorded. Within hours, it escalates into an ...

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 ...

In 1995, a pair of scientists discovered a planet outside our solar system orbiting a solar-type star. Since that finding—which won the scientists a portion of the 2019 Nobel Prize in ...

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, ...