For mere end 60 år siden begyndte søgningen efter udenjordisk intelligens (SETI) officielt med Project Ozma på Greenbank Observatory på Vestbredden, Virginia. Led by famed astronomer Frank Drake (who coined the Drake Equation), this survey used the observatory’s 25-meter (82-foot) dish to monitor Epsilon Eridani and Tau Ceti—two nearby sun-like stars—between April and July of 1960. Since then, multiple surveys have been conducted at different wavelengths to search for indications of technological activity (aka “technosignatures”) around other Stjerner.
