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For the second year in a row, the SETI Institute joined in the Atlanta Science Festival’s Exploration Expo in Piedmont Park. The expo drew over 20,000 science lovers, many of whom visited our booth. This year’s booth theme, “What Would You Say to Aliens,” focused on the Arecibo Message, sent in 1974 from the Arecibo Telescope to the globular cluster M13. The message encoded information about life on Earth, visualized as a grid of binary data. Learn more: https://www.seti.org/news/atlanta-science-festival-exploration-expo-and-the-arecibo-message/ #seti #science