SETI@home: Twenty-One Years of Distributed Search, Arecibo’s End, and Lessons for Future Sky Surveys

To the point

SETI@home mobilized millions of volunteers to analyze Arecibo data for unusual radio signals over 21 years, narrowing 12 billion detections to about 100 candidates, ending after Arecibo’s 2020 collapse with no definitive extraterrestrial signal but higher search sensitivity and valuable lessons for future surveys, while David Anderson and Eric Korpela note ongoing FAST analyses amid radio interference and funding challenges and hopeful prospects for a successor.