The International Academy of Astronautics has ratified revised guidelines for verifying and disclosing a potential signal from extraterrestrial intelligence - the first major overhaul since 2010.
On 5 June 2026, the International Academy of Astronautics (IAA) ratified the first major revision to its post-detection protocols in over 15 years - establishing new scientific standards for how researchers around the world should verify, announce, and manage the potential global consequences of a signal from extraterrestrial intelligence.
The updated Declaration of Principles was announced at a press briefing in Mountain View, California, home of the SETI Institute. The revision was overseen by a task group led by Professor Michael Garrett, Sir Bernard Lovell Chair of Astrophysics at the University of Manchester.
“The information environment we operate in today is vastly more complex than it was in 2010,” Professor Garrett said.
The previous Declaration had stood since 2010 - years before modern social media, AI-generated content, and the potential for an unverified claim to travel globally within minutes. The new framework directly addresses those realities.
At its core, the revised Declaration reaffirms a foundational scientific principle: extraordinary claims require extraordinary evidence. The threshold for announcing any detection has been raised, not lowered.
Under the updated rules, any candidate signal must be independently verified by separate organisations using different instruments and detection methods before any public announcement can be made. This closes a gap in the earlier protocols, which addressed a narrower conception of SETI research focused primarily on radio signals.
The updated Declaration formally acknowledges that modern SETI now spans the full electromagnetic spectrum - covering radio signals, infrared signatures potentially associated with large-scale engineering structures, optical laser emissions, and multi-messenger signals including gravitational waves. Each category now falls within the scope of the verification framework.
“We do not shout ‘alien’ the moment we see a strange blip,” Professor Garrett said according to Universe Today. “The scientific method demands we check, check again, and then ask others to check.”
A significant addition in the 2026 Declaration addresses the human dimension of detection work. Scientists involved in candidate-signal investigations could face intense public scrutiny, online harassment, and professional pressure. The new protocols require institutions to actively protect researchers from doxxing and personal safety risks during the verification phase - a provision with no clear parallel in any earlier version of the Declaration.
Data security is also formalised. Under the revised rules, all evidence bearing on a candidate signal must be recorded and stored in at least two tamper-proof repositories in different geographic locations - a safeguard against both data loss and claims of manipulation.
The updated Declaration maintains a longstanding restriction: no response to a detected extraterrestrial signal should be transmitted without prior international consultation. That consultation is expected to pass through the United Nations Secretary-General, meaning no individual scientist, institution, or government can unilaterally reply on behalf of humanity.
Douglas Vakoch, president of METI International - an organisation that advocates for active messaging to potential extraterrestrial civilisations - acknowledged the new protocol as a framework balancing scientific rigour with public transparency, while noting that public understanding of the verification process itself would be essential, according to Universe Today.
The IAA will establish a permanent Post-Detection Sub-Committee combining expertise in social science, law, and ethics. The committee’s role will be to advise on the longer-term societal implications of a confirmed discovery - a recognition that scientific verification would be only the beginning of a far more complex process.
A full technical presentation of the revised Declaration is scheduled for the International Astronautical Congress in Türkiye later in 2026.
The revision arrives at a moment of heightened public interest in the search for life beyond Earth. Scientific missions studying biosignatures on exoplanets, the ongoing declassification programme at the U.S. Department of War’s PURSUE initiative, and a broader cultural moment have brought the topic well beyond its earlier fringe associations. The IAA’s new protocols are, in part, a recognition that scientific governance needs to be proportionate to that moment.
The Declaration does not claim a signal has been detected. It is a framework for what happens if one is.
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