name of the person: Edmund Hillary
What he had done before: he was the first to climb to the summit of Mount Everest
about how they/their work has had an impact on the lives of others: He discovered the nature of comets' orbits and calculated the distance from Earth to the Sun and predicted the return of one comet, later known as Halley's Comet. This calculation was then used to determine the size of the solar system.
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