“I believe extraterrestrial intelligence (in AI form) could be concealed under the lunar surface," Alex Ellery told Newsweek.

Even at this early stage in our spacefaring age, humanity has already begun sending probes that will eventually reach other solar systems, even if that was not their original intention. Five robotic ...

Avi Loeb has suggested that humans themselves may be 'intelligent, self-replicating and self-repairing autonomous probes' built by an advanced alien civilisation, arguing in a new essay published ...