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Know the Cosmos and our place within it.
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“Exploration is in our nature.” - Carl Sagan

City of Astronomy Festival in Pasadena, California

City of Astronomy Festival in Pasadena, California — City of Astronomy Festival in Pasadena, California Attendees at the 2026 City of Astronomy Festival in Pasadena participated in The Planetary Society's exhibit. Visitors of all ages placed hearts on their favorite worlds, choosing from poster boards showing how much observing time and how many spacecraft humanity has dedicated to each one, and which worlds still remain largely unexplored. The Planetary Society

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