For 21 years, enthusiasts used their home computers to search for ET. UC Berkeley scientists are homing in on 100 signals they found.

UC Berkeley’s SETI@home, one of the most popular crowd-sourced research projects ever, turned up some 12 billion signals of interest. A lengthy analysis found 100 worth another look. For 21 years, between 1999 and 2020, millions of people worldwide loaned UC Berkeley scientists their computers to search for signs of advanced civilizations in our galaxy. The project — called

Published: January 14, 2026 5:22 pm

Source: University of California, Berkeley — Read original