NASA’s oldest active astronaut is also one of the most curious humans
SMRTR summary
NASA astronaut Don Pettit, 69, has begun his third long-duration stay on the International Space Station. Known for his curiosity and science communication skills, Pettit performs both official NASA research and personal experiments during his limited free time, including work with gelatin and previously constructing a Van de Graaff generator from Lego blocks.
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