XSS-11 is an experimental Air Force technology demonstrator designed to track other satellites. Controllers simply tell the spacecraft where to look for a piece of orbiting hardware–another U.S. satellite, for instance–and the XSS-11 autonomously plots a course, accelerates to the object, and begins to orbit and observe. It's the first step toward automatic satellite inspection and repair.
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Inside NASA's astronaut bootcamp and the grueling new training regimen for deep space. Plus, ten young geniuses shaking up science today, one writer's quest to analyze every man-made chemical in her body and more.
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