Which customer experience innovation had the biggest impact on visitor retention and loyalty at planetariums between 2010-2020?

The astronomy industry has evolved significantly in how it engages with the public. Planetariums and observatories worldwide have implemented various innovative approaches to enhance customer experience and build loyalty. This trivia question explores a major shift that occurred in the 2010s that transformed how astronomical facilities connect with visitors and create memorable experiences.

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Personalized night sky maps that track a customer's viewing history and suggest new celestial events based on their interests
Interactive dome experiences with real-time audience participation and personalized exploration paths
Membership programs offering priority access to rare astronomical event viewings
Mobile apps that synchronize with planetarium shows to provide extended content at home