Which famous retail chain was responsible for the initial widespread distribution and popularity of Celestron telescopes in the 1970s?

The astronomy retail market has evolved dramatically over the decades, with several brands becoming household names among stargazers. Behind many successful astronomy products are fascinating retail and marketing stories that helped these brands reach the stars. Test your knowledge about the retail history of one of astronomy's most recognized telescope manufacturers!

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Sears, Roebuck and Co.
Radio Shack
JCPenney
Montgomery Ward