Which innovative product development strategy did Celestron implement in 2018 that revolutionized how amateur astronomers interact with their telescopes?

The astronomy industry has undergone significant transformations in how telescopes and observational equipment are marketed and sold to both amateur astronomers and professional institutions. With the digital revolution, companies have had to adapt their product development and marketing strategies to remain competitive. Test your knowledge about how one of the industry's pioneers revolutionized their approach to reach stargazers worldwide.

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StarSense Explorer Technology - smartphone integration allowing automatic star identification and celestial navigation
AstroVR - virtual reality headsets that simulate space exploration while disconnected from telescopes
SkyLink Subscription - monthly delivery of interchangeable telescope lenses based on upcoming celestial events
Observatory-as-a-Service - remote access to professional-grade observatories through a mobile app