A Sign in Space: Global Collaboration to Decode a Potential Extraterrestrial Signal

To the point

SETI Institute's A Sign in Space project, led by Daniela de Paulis, pursues a global, cross‑disciplinary effort to receive, decode, and interpret an encoded extraterrestrial signal transmitted on May 24, 2023 from ESA's ExoMars orbiter, detected by the Allen Telescope Array, Green Bank Telescope, and Medicina, with data stored on IPFS and Protocol Labs support, and broad public engagement through a decoding platform, submission forms, livestreams, and discussions on societal implications led by scientists such as Wael Farah and Franck Marchis.

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SETI Institute's broad ecosystem of research, education, and public engagement advances astrobiology, astronomy, data science, exobiology, and technosignature initiatives—including InVADER, the Technosignatures SAG, and A Sign in Space led by Daniela de Paulis—that stages a global, interdisciplinary first-contact rehearsal around an encoded signal transmitted on May 24, 2023 from the European Space Agency's ExoMars Trace Gas Orbiter, to be detected by the Allen Telescope Array, Green Bank Telescope, and Medicina Radio Astronomical Station, with data stored via IPFS and made publicly accessible through a decoding platform and submission forms, complemented by a livestream with control rooms and discussions led by Wael Farah and Franck Marchis, all designed to foster worldwide collaboration among scientists, engineers, and artists in interpreting a potential extraterrestrial signal.