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Person

Gary Flandro

A man with short brown hair and glasses, wearing a dark brown sweater over a plaid shirt, is seated against a dark background.

American aerospace engineer who, as a doctoral candidate working at JPL in the summer of 1964, identified the rare planetary alignment of the late 1970s that allowed a single spacecraft to chain flybys of Jupiter, Saturn, Uranus, and Neptune. His memo became the foundation of the Voyager Grand Tour. He spent most of his later career as a professor at the University of Tennessee Space Institute.

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