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In May 2023, a unique coded message was beamed to Earth from Mars, marking a critical test in preparing humanity for the possibility of receiving real “Alien Signals”. The source? The European Space Agency’s (ESA) ExoMars Trace Gas Orbiter, as part of “A Sign in Space,” an experimental project led by Daniela de Paulis, Artist in Residence at the SETI Institute and Green Bank Observatory. The project aimed to explore the techniques necessary for decoding potential alien communications. A Yearlong Puzzle Solved by a Father-Daughter DuoA father-daughter duo, Ken and Keli Chaffin, successfully dec…

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