Which marketing strategy helped Celestron telescopes achieve a 35% market share increase during the 2020 'backyard astronomy boom'?

Space tourism and astronomy-related products are creating an exciting new retail frontier. Companies are developing innovative ways to market and sell astronomical experiences and products to consumers fascinated by the cosmos. This poll tests your knowledge about how the retail landscape is evolving in the astronomy industry, particularly regarding marketing strategies that have propelled certain astronomy brands to prominence.

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Partnering with NASA to create exclusive 'mission edition' telescopes featuring imagery from specific space missions
Implementing an augmented reality app that showed potential customers what celestial objects they could view from their location with specific telescope models
Creating a subscription model where customers receive upgraded components for their telescopes quarterly
Launching a celebrity endorsement campaign featuring renowned astrophysicists and space enthusiasts