09. Are some missions secret? Or can we read about all of them? (A K2S Question)

From The Space Library

Some missions performed on piloted spacecraft—a few Space Shuttle flights for instance—are secret. Some of those in the past have been for national defense purposes and others for very competitive industries like computer chip research. There are also secretive unpiloted robotic satellite missions with similar sponsors.

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Answer provided by Charles D. Walker, Ph.D

Question and Answer extracted from the book Kids to Space - by Lonnie Schorer

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