Moon dust may be hiding signs of pulverised alien technology, scientist says - Grain-sized remnants of alien technology may ...

Strange interstellar comet speculated to be alien spacecraft is older than Solar System - Scientists say comet represents ...

Instead of searching the skies for radio signals, scientists suggest the first evidence of an extinct alien civilisation ...

A rare visitor from another star system prompted SETI to hunt for alien technology, but the mysterious object appears to be a ...