For decades, the search for extraterrestrial intelligence (SETI) has largely operated on the assumption ...
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, ...
We may be able to find evidence of advanced alien civilizations in pulverized traces of their technology. Oxford astrophysicist Brian Lacki argues in a new, yet-to-be-peer-reviewed paper that, instead ...
Claims that aliens are already here are everywhere, but proving them is another matter. The strongest cases become more ...