Which retail innovation did NASA implement in 2017 that dramatically increased access to space-themed merchandise and educational products?

NASA's retail operations have undergone significant innovations to better connect space science with consumers. Their gift shops and online store represent an interesting case study in specialty retail that balances educational content with commercial appeal. This poll explores a notable retail innovation that transformed how astronomical products reach space enthusiasts worldwide.

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An AI-powered recommendation system that suggests products based on a customer's interest in specific space missions
The NASA Marketplace platform that allows third-party vendors to sell NASA-approved space merchandise through a centralized online hub
A subscription box service delivering monthly packages of space-themed items curated by astronauts
Virtual reality shopping experiences where customers can browse products while exploring virtual recreations of the International Space Station