Which retail technology innovation revolutionized astronomy product sales by allowing customers to 'test' telescope views before purchase?

The astronomy retail sector has evolved dramatically in recent years, with technological advancements transforming how consumers interact with celestial observation products. From traditional telescopes to smart star-tracking devices, retailers have had to adapt their marketing strategies to an increasingly tech-savvy customer base. This trivia question focuses on a significant retail technology advancement that changed how astronomy products are sold and experienced by consumers.

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Augmented Reality (AR) preview apps that simulate night sky views through specific telescope models on smartphones
In-store planetarium domes where customers view pre-recorded footage from telescopes
Virtual Reality headsets that connect to telescope display models on the retail floor
QR code technology linking to YouTube videos of telescope performance reviews