2026 Update to the SETI Declaration: Expanded Technosignature Scope and Enhanced International Safeguards

To the point

A 2026 update to the SETI Declaration, led by Kathryn Denning with Michael A. Garrett, Carol Oliver, and Leslie I. Tennen and approved by the IAA SETI Committee, keeps core principles like verification and international consultation while broadening the scope to technosignatures, strengthens safety and risk communication, and requires UN-level international consultation before any response transmissions plus interdisciplinary collaboration after a detection.