Which major change did NASA make to its iconic 'meatball' logo in 1975, before reverting back to the original design in 1992?

Space exploration has captivated humanity for generations, with major astronomy organizations leading the way in discovery and innovation. These organizations not only advance our understanding of the cosmos but also develop distinct brand identities that become recognized worldwide. This trivia question focuses on one of astronomy's most recognizable logos and its interesting evolution through the decades. Test your knowledge about the visual branding history of this prominent space agency!

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They temporarily replaced it with the streamlined 'worm' logo featuring a stylized red NASA wordmark
They added a space shuttle silhouette to the original design to highlight their new spacecraft program
They inverted the color scheme from blue background with white stars to white background with blue stars
They removed the red chevron element completely to create a more minimalist astronomical appearance