Which marketing innovation by Celestron in the 1990s revolutionized the telescope market by making advanced astronomy accessible to casual hobbyists?

Modern astronomy has been transformed not just by scientific breakthroughs, but also by innovative product marketing strategies. Major telescope manufacturers have dramatically changed how they position their products over the past few decades, expanding from purely scientific markets to include amateur astronomers and even casual stargazers. Test your knowledge about how one of astronomy's most significant product marketing shifts changed the industry forever.

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The introduction of the NexStar computerized telescope series with automated star-finding technology
The development of lightweight carbon fiber telescope tubes that reduced shipping costs
The creation of subscription-based astronomy content delivered with telescope purchases
The launch of the first telescope with built-in astrophotography capabilities