Topic: nuclear

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Neil deGrasse Tyson

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  Astrophysicist Neil deGrasse Tyson discusses the fossil record and the chances of another dramatic meteor explosion. (06:15)

Exclusive – Neil deGrasse Tyson Extended Interview Pt. 1

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  In this exclusive, unedited interview, "Space Chronicles" author Neil deGrasse Tyson shares the science behind asteroid detection. (06:18)

Exclusive – Neil deGrasse Tyson Extended Interview Pt. 2

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  In this exclusive, unedited interview, Neil deGrasse Tyson argues against using nuclear weapons to counter potentially Earth-killing asteroids. (04:51)

Exclusive – Neil deGrasse Tyson Extended Interview Pt. 3

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  In this exclusive, unedited interview, physicist Neil deGrasse Tyson remembers the "space bat" and shares his anxiety over humanity's galactic dignity. (05:51)