What happens if scientists find convincing evidence of extraterrestrial intelligence? That question guided a recent SETI Live discussion on the updated SETI post-detection protocols, the first major revision of the guidelines in more than 15 years. Published by the International Academy of Astronautics, the protocols outline how researchers worldwide should respond if clear evidence of extraterrestrial intelligence is detected.

Hosted by SETI Institute research scientist Dr. Lauren Sgro, the session featured Dr. Chelsea Haramia and Dr. Lucian Walkowicz, co-directors of the newly launched Discovery and Futures Lab. They discussed how scientists and society might handle a possible discovery, and why these conversations must happen before evidence emerges. A key reason for the update is the transformed information landscape. The previous version was drafted in 2010, before social media, AI, deepfakes, and rapid misinformation shaped public communication as they do today. Any possible signal would now enter an environment of instant headlines, speculation, and conflicting interpretations.

The protocols therefore balance transparency with researchers’ safety and capacity. Haramia noted that the new version allows scientists to decline ongoing media requests, helping them focus on verification rather th an public pressure. The document also reflects changes in SETI itself. While earlier searches focused mainly on radio signals, the updated language recognizes a wider range of possible technosignatures, including optical lasers and other signs of advanced technology. One core principle remains: no single person, institution, or nation should decide how to respond. Any action should involve international consultation, because the consequences could affect future generations and the wider terrestrial ecosystem.

The discussion emphasized that discovery may not be a single dramatic moment. Evidence could remain ambiguous for years, requiring follow-up observations and independent verification. That is why the Discovery and Futures Lab studies communication, uncertainty, public response, and decision-making across SETI and astrobiology. Together, the protocols and the lab point to the same conclusion: humanity should prepare for discovery before it happens.

For more details, read the full article and watch the SETI Live conversation.