Which e-commerce platform was the first to create a dedicated 'Astronomy & Telescopes' category that revolutionized how amateur astronomers purchase equipment online?

The astronomy industry has its own unique intersection with e-commerce and retail history. As space exploration and astronomical interests have grown, specialized marketplaces have emerged to connect enthusiasts with telescopes, astrophotography equipment, and space memorabilia. Test your knowledge about one of the most significant developments in astronomical retail that changed how amateur astronomers and professionals alike shop for their celestial observation needs.

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Celestron Direct (1997)
Telescope.com (2001)
Amazon Astronomy Store (2003)
Sky & Telescope Marketplace (1999)