Which innovative product design feature was implemented after Hubble's initial launch to save the mission and eventually became central to NASA's marketing campaign for the telescope?

The Hubble Space Telescope represents one of NASA's most successful scientific instruments and public relations achievements. Since its 1990 launch, Hubble has not only revolutionized our understanding of the cosmos but also transformed how astronomical discoveries are marketed and shared with the public. This poll tests your knowledge about the innovative product design and marketing strategies that made Hubble a household name and changed how we consume space science.

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COSTAR (Corrective Optics Space Telescope Axial Replacement) - the 'glasses' that fixed Hubble's flawed mirror
The Advanced Camera for Surveys (ACS) that captured the famous 'Pillars of Creation' image
The Wide Field Planetary Camera 2 with its distinctive 'stair-step' design
The Solar Array Wing Assemblies that power the telescope's imaging systems