Which groundbreaking marketing approach by Celestron in 2007 is credited with expanding the amateur astronomy market by over 40% within 18 months?

In the competitive world of astronomy equipment, certain marketing campaigns have revolutionized how we connect with the cosmos. One particular telescope brand created a marketing phenomenon that transformed amateur astronomy participation rates worldwide. This poll tests your knowledge of product marketing history in the astronomy industry and how innovative approaches have shaped consumer engagement with the stars.

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The 'Stars in Reach' campaign that included free star-mapping software with every telescope purchase
Their 'Cosmic Guarantee' offering lifetime technical support and maintenance for all telescope models
The celebrity endorsement program featuring famous scientists and astronauts as brand ambassadors
Their innovative 'Telescope-as-a-Service' subscription model with quarterly equipment upgrades