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Space
Space
Science
Brett Tingley

'Alien signal' sent from Mars decoded by father-daughter team

Mars Earth ESA
White dots arranged in geometric shapes on a black background.

In 2023, a coded message was beamed at Earth from Mars. After over a year, this simulated extraterrestrial signal was finally decoded.

The European Space Agency's (ESA) ExoMars Trace Gas Orbiter Mars probe beamed the signal at us in May 2023 as part of "A Sign in Space," a multi-week art project led by Daniela de Paulis, the current Artist in Residence at the SETI Institute in Mountain View, California and the Green Bank Observatory in West Virginia. The project was intended as an experiment to test what types of techniques might be useful for decoding signals that might be detected as part of SETI (search for extraterrestrial intelligence) efforts.

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