Which groundbreaking marketing campaign by Celestron in the 1970s revolutionized telescope sales by making astronomy accessible to the general public?

In the competitive world of astronomy equipment, brand storytelling has played a crucial role in how companies position their products to both amateur stargazers and professional astronomers. This trivia question explores how one of the most recognizable telescope brands transformed the industry through innovative marketing that connected their products to the wonder of cosmic exploration.

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The 'Stars in Your Hands' campaign that offered free astronomy classes with every telescope purchase
The 'Orange Tube Revolution' campaign that made their distinctive orange telescopes a recognizable status symbol among amateur astronomers
The 'NASA Partnership' campaign claiming their telescopes used the same technology as space missions
The 'Constellation Guarantee' campaign offering lifetime warranties on all their products