SETI has investigated a billion potential signals from alien beings since the project began almost 50 years ago. None has so far turned out to be ET, but that hasn’t stopped the search for extraterrestrial intelligence, which is about to expand dramatically.
First up is SETI@homeII, due for launch early next year. The program is a direct descendant of SETI@home, the screensaver that uses your humble PC’s down time to search data from the giant Arecibo radio telescope in Puerto Rico (see below) for signs of alien life.
SETI@home began three years ago, and proved too popular for…
