In this video profile from NOVA scienceNOW: "The Secret Life of Scientists & Engineers," meet astrophysicist Neil deGrasse Tyson, who was “called” to study the cosmos at the age of nine. Tyson describes the two events that influenced his decision to become an astrophysicist: first, a live planetarium show, and, two years later, receiving his first telescope. From then on, he was hooked.
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