Which innovative product development approach did NASA use to extend the Hubble Space Telescope's lifespan and capabilities beyond its original design specifications?

The Hubble Space Telescope represents one of the most successful product developments in astronomy history. Its journey from concept to iconic scientific instrument required innovative design thinking, market research among astronomers, and careful product development. This poll tests your knowledge of how this revolutionary astronomical tool was developed, marketed, and continuously improved over its lifetime through innovation and customer feedback from the scientific community.

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Modular design allowing for component upgrades during servicing missions
AI-powered self-repair systems that automatically fixed failing components
Annual complete replacement of the telescope with incrementally improved versions
Remote software updates that eliminated the need for physical hardware improvements