Overview
- UC Berkeley researchers publicly identified 100 signals of interest after winnowing roughly 12 billion detections gathered between 1999 and 2020.
- Automated radio-frequency interference removal on a Max Planck Institute supercomputer cut the dataset to a few million, with manual review producing the final list.
- Follow-up observations using China’s Five-hundred-meter Aperture Spherical Telescope have been underway since July 2025 to re-examine the candidate sky regions.
- The team reports no confirmed extraterrestrial signal to date and emphasizes new sensitivity benchmarks and methodological lessons for future SETI searches.
- Two papers in The Astronomical Journal detail the pipeline—spanning Doppler-drift searches and human vetting—enabled by millions of citizen-science computers worldwide.