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Purdue has strong links with NASA. Twenty-five current and former astronauts are alumni, including Neil Armstrong.
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Armstrong and Aldrin explored the moon for about 2½ hours, collecting samples and taking pictures.
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Apollo 11 astronaut Michael Collins remembers looking up a the sky as a child, seeing "the most marvelous things up there" and wanting to know more about them. That's when he knew that he wanted to fly.
Where were you when Neil Armstrong first walked on the Moon?