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My Dad Discovered Pluto

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Neil deGrasse Tyson and Pluto dog

Aiding the space program
In 1945, the Lowell Observatory let my father go, ostensibly for financial reasons. So the following year he began working at New Mexico's White Sands Proving Grounds (now White Sands Missile Range), developing and installing optical-tracking telescopes for the burgeoning space program. In this photo, my dad (left) appears in about 1950 with military associates at a new site near the top of the San Andres Mountains. He had assembled a missile-tracking theodolite that was about to be mounted at the site.


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