In a paper titled "Search for Artificial Stellar Sources of Infrared Radiation," he suggested that advanced extra-terrestrial intelligences (ETIs) could be found by looking for signs of artificial structures so large that they encompass entire star systems (also known as megastructures).
In un documento intitulata "Suche for Artificial Stellar Sources of Infrared Radiation", il suggera che i intelligence extraterrestre avanzati (ETI) potrebbe essere gasiti per questare signi di strumenti artificiale si grande che engloba gli sistemi di stessi completi (aussi connui che megastructures).