Fifty years after the interstellar signal left Earth, Frank Drake—assisted by Richard Isaacman—designed the Arecibo message, encoded as a 23-by-73 binary image that depicts humans, our solar system, and DNA with a final … #aliens #arecibo #ovni #scientificamerican #uap #ufo #ufosky #usa #yevpatoria https://www.scientificamerican.com/article/the-arecibo-message-earths-first-interstellar-transmission-turns-50