Which innovative retail strategy did Celestron implement in 2019 that revolutionized telescope marketing?

The astronomy retail market has seen significant growth in recent years as space exploration captures public imagination. From telescopes to star-tracking apps, companies employ various marketing strategies to stand out in this niche but expanding industry. Test your knowledge about how astronomy products are marketed and sold to enthusiasts and casual stargazers alike!

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AR-enabled packaging that showed night sky views when scanned with a smartphone
Subscription-based model offering different telescopes each season
Pop-up dark sky retail locations in national parks
Celebrity astronomer endorsement program featuring Neil deGrasse Tyson